{
 "metadata": {
  "title": "How We Learned We Live on a Planet",
  "description": "Milestones in the realisation that human activity transforms the Earth, and in the cultural imagination of nature — from Antiquity to the present.",
  "version": "0.1.0",
  "lastUpdated": "2026-09-23",
  "count": 232,
  "frameNote": "The `frame` field codes each event against the six relational framings (sacredness and kinship, beauty and wonder, threat, utility and mastery, care and responsibility, loss and vulnerability). This is a per-event coding of a curated corpus of documented milestones, not a sample of surviving literature: the frame mix over time describes this corpus and must not be read as a measure of the cultural record at large.",
  "coverageNote": "Coverage is uneven by construction. The surviving record before 1500 is dominated by what institutions chose to copy, and the corpus below 1800 leans Mediterranean and European. Regional coverage is recorded per event so the imbalance stays visible."
 },
 "categories": {
  "observation": {
   "name": "Observation & science",
   "desc": "Measurements, discoveries and assessments that revealed how the Earth works and how we are changing it."
  },
  "idea": {
   "name": "Ideas & cosmologies",
   "desc": "Concepts, worldviews and ways of framing the relationship between people and the rest of nature."
  },
  "law": {
   "name": "Law & accords",
   "desc": "Statutes, treaties, conventions and rulings that bind conduct toward the nonhuman world."
  },
  "institution": {
   "name": "Institutions & summits",
   "desc": "Bodies, conferences and assessment machinery built to govern environmental questions across borders."
  },
  "warning": {
   "name": "Warnings & reckonings",
   "desc": "Alarms raised, deadlines set, promises audited, failures named."
  },
  "movement": {
   "name": "Movements & publics",
   "desc": "Mobilisations, protests and campaigns that moved environmental questions into public politics."
  },
  "disaster": {
   "name": "Disasters & harms",
   "desc": "Events in which environmental damage became undeniable, usually at somebody's expense."
  },
  "culture": {
   "name": "Culture & image",
   "desc": "Books, photographs, films and images that changed how the planet was seen."
  },
  "technology": {
   "name": "Technology & promise",
   "desc": "Technical proposals offered as the answer, and what became of them."
  }
 },
 "frames": {
  "sacred": {
   "name": "Sacredness & kinship",
   "color": "#B48EAD",
   "desc": "Nature as sacred, animate, ancestral, or a community humans belong to."
  },
  "wonder": {
   "name": "Beauty & wonder",
   "color": "#88C0D0",
   "desc": "Nature as a source of pleasure, inspiration, or awe."
  },
  "threat": {
   "name": "Threat",
   "color": "#BF616A",
   "desc": "Nature as dangerous, hostile, or unpredictable — or the danger we have made of it."
  },
  "mastery": {
   "name": "Utility & mastery",
   "color": "#D08770",
   "desc": "Nature as resources, property, or something to control."
  },
  "care": {
   "name": "Care & responsibility",
   "color": "#A3BE8C",
   "desc": "Nature as deserving protection or restraint."
  },
  "loss": {
   "name": "Loss & vulnerability",
   "color": "#8FA1B3",
   "desc": "Nature as damaged, disappearing, or endangered."
  }
 },
 "scales": [
  "local",
  "regional",
  "national",
  "international",
  "planetary"
 ],
 "regions": {
  "mediterranean": "Mediterranean",
  "europe": "Europe",
  "eastasia": "East Asia",
  "southasia": "South Asia",
  "westasia": "West Asia",
  "africa": "Africa",
  "americas": "Americas",
  "oceania": "Oceania",
  "global": "Global / multiple"
 },
 "events": [
  {
   "id": "aboriginal-fire",
   "year": -60000,
   "title": "Aboriginal fire management shapes a continent",
   "description": "Systematic low-intensity burning across Australia maintained mosaic landscapes, favoured particular species and reduced catastrophic fire for tens of millennia. It is the longest continuously practised landscape management known, and its suppression after colonisation contributed to modern megafires.",
   "category": "idea",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "oceania",
   "significance": "major",
   "references": [
    {
     "title": "Fire-stick farming (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Fire-stick_farming"
    },
    {
     "title": "Gammage, The Biggest Estate on Earth",
     "url": "https://www.allenandunwin.com/browse/book/Bill-Gammage-The-Biggest-Estate-on-Earth-9781742377483"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "mesopotamia-salinisation",
   "year": -2000,
   "title": "Salinisation degrades Mesopotamian farmland",
   "description": "Cuneiform records show a shift from wheat to salt-tolerant barley and falling yields across southern Mesopotamia as irrigation without drainage accumulated salt. It is the earliest documented case of an agricultural civilisation degrading its own soil.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "westasia",
   "significance": "major",
   "references": [
    {
     "title": "Jacobsen & Adams 1958, Science",
     "url": "https://doi.org/10.1126/science.128.3334.1251"
    }
   ],
   "milestone": true
  },
  {
   "id": "hesiod-works-days",
   "year": -700,
   "title": "Hesiod sets human labour inside the seasons",
   "description": "Works and Days binds farming to the calendar of stars and weather, and opens with the myth of a golden age from which the world has declined. It is among the earliest surviving texts to treat the natural order as both the condition of human life and something already lost.",
   "category": "idea",
   "frame": "sacred",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "Works and Days (Perseus)",
     "url": "https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0132"
    }
   ]
  },
  {
   "id": "solon-olive-law",
   "year": -594,
   "title": "Solon regulates olive and tree planting at Athens",
   "description": "Solon's laws set spacing requirements for trees near boundaries and restricted the export of agricultural produce other than olive oil. They are among the earliest recorded statutes governing the use of a living resource.",
   "category": "law",
   "frame": "mastery",
   "scale": "local",
   "mode": "proaction",
   "stance": "promise",
   "region": "mediterranean",
   "significance": "minor",
   "references": [
    {
     "title": "Solon (Britannica)",
     "url": "https://www.britannica.com/biography/Solon"
    }
   ]
  },
  {
   "id": "sacred-groves",
   "year": -500,
   "title": "Sacred groves protect forest across continents",
   "description": "Groves placed under religious prohibition — in India, West Africa, Japan, Greece and elsewhere — preserved old-growth forest and species that vanished from surrounding land. Protection through prohibition long predates protection through legislation.",
   "category": "idea",
   "frame": "sacred",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Sacred grove (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Sacred_grove"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "hippocrates-airs",
   "year": -400,
   "title": "Hippocratic Airs, Waters, Places ties health to environment",
   "description": "The treatise argues that the character and diseases of a people follow from their winds, waters, soils and seasons. It founds a long tradition of reading human wellbeing off the physical world.",
   "category": "observation",
   "frame": "mastery",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "Airs, Waters, Places (MIT Classics)",
     "url": "http://classics.mit.edu/Hippocrates/airwatpl.html"
    }
   ]
  },
  {
   "id": "plato-critias",
   "year": -360,
   "title": "Plato compares deforested Attica to the skeleton of a sick man",
   "description": "In the Critias, Plato describes hills that once held deep soil and great trees, now washed bare, with springs failed and rainfall running off to the sea. It is the most quoted ancient statement of human-caused landscape degradation, and it already carries a sense of irreversible loss.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "mediterranean",
   "significance": "major",
   "references": [
    {
     "title": "Critias (Perseus)",
     "url": "https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0180"
    }
   ],
   "milestone": true
  },
  {
   "id": "mencius-ox-mountain",
   "year": -300,
   "title": "Mencius describes Ox Mountain, and the illusion that it was always bare",
   "description": "Mencius records a hill stripped by axes and grazing, and notes that people seeing it bare assume it was never wooded. The parable states shifting baseline syndrome in full, roughly twenty-three centuries before the term was coined.",
   "category": "idea",
   "frame": "loss",
   "scale": "local",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "eastasia",
   "significance": "major",
   "references": [
    {
     "title": "Mencius, Book VI (Chinese Text Project)",
     "url": "https://ctext.org/mengzi/gaozi-i"
    }
   ],
   "milestone": true
  },
  {
   "id": "arthashastra-forests",
   "year": -300,
   "title": "The Arthashastra assigns forests to state protection",
   "description": "Kautilya's treatise on statecraft establishes superintendents of forests, elephant sanctuaries with fines for killing, and penalties for damaging trees. Protection is administrative and economic rather than sentimental.",
   "category": "law",
   "frame": "mastery",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "southasia",
   "significance": "notable",
   "references": [
    {
     "title": "Arthashastra (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Arthashastra"
    }
   ]
  },
  {
   "id": "theophrastus-climate",
   "year": -300,
   "title": "Theophrastus links draining and clearing to local climate change",
   "description": "Theophrastus reports that draining marshes near Larissa made the region colder, and that clearing forests near Philippi warmed it. The claim that human works alter climate is nearly as old as written natural history.",
   "category": "observation",
   "frame": "mastery",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "Theophrastus (Stanford Encyclopedia)",
     "url": "https://plato.stanford.edu/entries/theophrastus/"
    }
   ]
  },
  {
   "id": "dujiangyan",
   "year": -256,
   "title": "Dujiangyan diverts a river without damming it",
   "description": "Li Bing's irrigation works on the Min River controlled flooding and watered the Chengdu plain by shaping flow rather than blocking it, and have functioned continuously for over 2,200 years. It is the longest-running piece of working hydraulic infrastructure on Earth.",
   "category": "technology",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "notable",
   "references": [
    {
     "title": "Dujiangyan (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Dujiangyan"
    }
   ]
  },
  {
   "id": "ashoka-edicts",
   "year": -250,
   "title": "Ashoka's edicts protect species and plant trees",
   "description": "The Mauryan emperor's Pillar Edict V lists animals not to be killed, forbids burning forests without reason, and records the planting of banyan trees and mango groves along roads. It is plausibly the earliest surviving state conservation law.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "Edicts of Ashoka (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Edicts_of_Ashoka"
    }
   ]
  },
  {
   "id": "lucretius-earth-ageing",
   "year": -55,
   "title": "Lucretius argues the Earth is ageing and yielding less",
   "description": "De Rerum Natura describes a worn-out world whose soil gives grudgingly what it once gave freely, and a farmer who sighs that the old days were better. Decline is framed as cosmic rather than caused.",
   "category": "idea",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "De Rerum Natura (Perseus)",
     "url": "https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0131"
    }
   ]
  },
  {
   "id": "columella-refutes-exhaustion",
   "year": 60,
   "title": "Columella refutes the idea that the Earth is worn out",
   "description": "De Re Rustica opens by rejecting the common complaint that the soil has aged and grown barren, arguing instead that yields fall from bad husbandry. It is an early insistence that degradation is a human choice, not a fate.",
   "category": "idea",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "De Re Rustica (LacusCurtius)",
     "url": "https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Columella/home.html"
    }
   ]
  },
  {
   "id": "pliny-mining",
   "year": 77,
   "title": "Pliny condemns mining as violence done to the Earth",
   "description": "The Natural History describes tunnelling through mountains for gold and marvels that the ground sometimes splits open, asking whether such wounds are made for greed or need. Pliny also records that the world's metals are finite.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "mediterranean",
   "significance": "notable",
   "references": [
    {
     "title": "Natural History, Book 33 (Perseus)",
     "url": "https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0137"
    }
   ]
  },
  {
   "id": "roman-lead-icecores",
   "year": 100,
   "title": "Roman lead smelting registers in Greenland ice",
   "description": "Ice cores from Greenland record atmospheric lead four times background levels through Roman times, falling away with the empire. The pollution of an ancient economy is legible two millennia later, at the far end of the planet.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Hong et al. 1994, Science",
     "url": "https://doi.org/10.1126/science.265.5180.1841"
    },
    {
     "title": "McConnell et al. 2018, PNAS",
     "url": "https://doi.org/10.1073/pnas.1721818115"
    }
   ],
   "milestone": true
  },
  {
   "id": "hima-harim",
   "year": 620,
   "title": "Islamic hima and harim establish protected reserves",
   "description": "Prophetic tradition and subsequent jurisprudence set aside hima, communal grazing reserves, and harim, protected zones around water sources. The institutions persisted across the Arabian peninsula for over a millennium.",
   "category": "law",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "westasia",
   "significance": "notable",
   "references": [
    {
     "title": "Hima (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Hima_(environmental_protection)"
    }
   ]
  },
  {
   "id": "shan-shui",
   "year": 900,
   "title": "Shan shui painting makes landscape the subject",
   "description": "Song dynasty painters made mountains and water the primary subject of serious art, with human figures reduced to a scale that expressed their proportion within the whole. European landscape painting would not arrive at anything comparable for six centuries.",
   "category": "culture",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "major",
   "references": [
    {
     "title": "Shan shui (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Shan_shui"
    }
   ]
  },
  {
   "id": "rahui-tapu",
   "year": 1200,
   "title": "Rahui and tapu regulate harvest across Polynesia",
   "description": "Temporary prohibitions closed reefs, forests and fisheries to allow recovery, enforced by chiefly and spiritual authority. Aotearoa New Zealand now recognises rahui in contemporary fisheries management.",
   "category": "law",
   "frame": "sacred",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "oceania",
   "significance": "notable",
   "references": [
    {
     "title": "Rahui (Te Ara)",
     "url": "https://teara.govt.nz/en/kaitiakitanga-guardianship-and-conservation"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "edward-coal-ban",
   "year": 1273,
   "title": "London bans sea-coal burning",
   "description": "Edward I prohibited the burning of sea-coal in London after complaints of foul air, reportedly on pain of severe penalty. The ban failed, and the smoke kept thickening for six hundred years.",
   "category": "law",
   "frame": "threat",
   "scale": "local",
   "mode": "reaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Air pollution history (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Air_pollution#History"
    }
   ]
  },
  {
   "id": "ibn-khaldun",
   "year": 1377,
   "title": "Ibn Khaldun ties the rise and fall of states to their land",
   "description": "The Muqaddimah linked the fortunes of dynasties to soil, water, climate and the carrying capacity of their territory, treating environment as a driver of history rather than its setting.",
   "category": "idea",
   "frame": "mastery",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "westasia",
   "significance": "notable",
   "references": [
    {
     "title": "Muqaddimah (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Muqaddimah"
    }
   ]
  },
  {
   "id": "venice-forest-laws",
   "year": 1470,
   "title": "Venice reserves oak forests for the Arsenal",
   "description": "The Republic mapped, catalogued and legally reserved mainland oak stands to guarantee timber for its fleet, appointing officers to enforce cutting rules. Strategic scarcity produced sustained-yield management centuries before the term existed.",
   "category": "law",
   "frame": "mastery",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Appuhn, A Forest on the Sea",
     "url": "https://www.press.jhu.edu/books/title/9350/forest-sea"
    }
   ]
  },
  {
   "id": "columbian-exchange",
   "year": 1492,
   "title": "The Columbian Exchange redistributes the world's biota",
   "description": "Contact moved maize, potatoes, wheat, horses, rats and pathogens between hemispheres, remaking agriculture and ecosystems everywhere. Alfred Crosby's term named the largest biological reorganisation since the continents separated.",
   "category": "disaster",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Columbian exchange (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Columbian_exchange"
    }
   ],
   "milestone": true
  },
  {
   "id": "easter-island",
   "year": 1600,
   "title": "Rapa Nui's forest disappears",
   "description": "The island's palm forest was lost within a few centuries of settlement, and the story became the standard parable of self-inflicted ecological collapse. Later work implicates introduced rats and, decisively, European contact and slaving — the parable is far less tidy than its retellings.",
   "category": "disaster",
   "frame": "loss",
   "scale": "local",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "oceania",
   "significance": "notable",
   "references": [
    {
     "title": "Deforestation of Easter Island (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Deforestation_of_Easter_Island"
    },
    {
     "title": "Hunt & Lipo 2006, Science",
     "url": "https://doi.org/10.1126/science.1121879"
    }
   ]
  },
  {
   "id": "orbis-spike",
   "year": 1610,
   "title": "The Orbis Spike marks a dip in atmospheric carbon dioxide",
   "description": "Ice cores record a fall in carbon dioxide around 1610, which Lewis and Maslin attributed to forest regrowth across the Americas after the deaths of some fifty million people following contact. They proposed it as the Anthropocene's golden spike.",
   "category": "observation",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Lewis & Maslin 2015, Nature",
     "url": "https://doi.org/10.1038/nature14258"
    }
   ],
   "milestone": true
  },
  {
   "id": "evelyn-fumifugium",
   "year": 1661,
   "title": "Evelyn's Fumifugium proposes to cure London's smoke",
   "description": "John Evelyn described a city wrapped in a hellish cloud of sea-coal smoke that corroded buildings and lungs, and proposed relocating industry downwind and planting fragrant belts around the city. It is the first sustained treatise on urban air pollution and its remedy.",
   "category": "warning",
   "frame": "threat",
   "scale": "local",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Fumifugium (Project Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/57459"
    }
   ],
   "milestone": true
  },
  {
   "id": "evelyn-sylva",
   "year": 1664,
   "title": "Evelyn's Sylva argues for replanting the nation's timber",
   "description": "Commissioned in response to naval timber shortage, Sylva urged landowners to plant trees as a duty to posterity. It became one of the most influential forestry books in English and framed planting as an obligation across generations.",
   "category": "idea",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Sylva (Project Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/20778"
    }
   ]
  },
  {
   "id": "japan-shogunate-forests",
   "year": 1666,
   "title": "Japan's shogunate restricts logging after erosion crisis",
   "description": "Facing denuded hillsides, flooding and silted rivers, Tokugawa authorities banned clear-cutting on steep slopes and began a long programme of plantation forestry. Japan reversed a national deforestation crisis without industrial substitutes.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "reaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "major",
   "references": [
    {
     "title": "Totman, The Green Archipelago",
     "url": "https://www.jstor.org/stable/j.ctv15r5798"
    }
   ],
   "milestone": true
  },
  {
   "id": "edo-night-soil",
   "year": 1700,
   "title": "Edo runs a closed nutrient cycle",
   "description": "Tokugawa Japan's cities returned human waste to surrounding farmland through an organised paid trade, sustaining a million-person city without the sanitation crises of contemporary Europe. Circularity was an operating economy, not a slogan.",
   "category": "idea",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "notable",
   "references": [
    {
     "title": "Night soil (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Night_soil"
    }
   ]
  },
  {
   "id": "carlowitz-nachhaltigkeit",
   "year": 1713,
   "title": "Carlowitz coins Nachhaltigkeit in Saxon forestry",
   "description": "Sylvicultura oeconomica argued that timber must be cut only at the rate the forest regrows, and named the principle nachhaltend. The word sustainability enters the world as an accounting rule for a mining economy running out of wood.",
   "category": "idea",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Hans Carl von Carlowitz (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Hans_Carl_von_Carlowitz"
    }
   ],
   "milestone": true
  },
  {
   "id": "bishnoi-khejarli",
   "year": 1730,
   "title": "The Bishnoi die defending trees at Khejarli",
   "description": "Amrita Devi and, by tradition, 362 others were killed embracing khejri trees against the Maharaja's woodcutters. The Bishnoi tenets, set out in the fifteenth century, remain among the oldest continuously observed conservation codes, and Chipko drew on them directly.",
   "category": "movement",
   "frame": "sacred",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "Khejarli (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Khejarli"
    }
   ],
   "milestone": true
  },
  {
   "id": "mauritius-poivre",
   "year": 1769,
   "title": "Colonial Mauritius enacts forest law on climate grounds",
   "description": "Pierre Poivre and the island's administrators, persuaded that clearing had dried the climate and stripped the soil, imposed forest reserves and replanting. Richard Grove identified this as the first state environmental policy founded on a scientific theory of human-caused climate change.",
   "category": "law",
   "frame": "care",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "africa",
   "significance": "major",
   "references": [
    {
     "title": "Grove, Green Imperialism",
     "url": "https://www.cambridge.org/9780521565134"
    }
   ],
   "milestone": true
  },
  {
   "id": "buffon-epoques",
   "year": 1778,
   "title": "Buffon names humanity a force that changes the Earth",
   "description": "Les Epoques de la Nature closes its seven ages with a seventh in which humans reshape the planet, drain marshes, clear forests and could temper the climate deliberately. Buffon treats human agency as geological and, notably, as improvement.",
   "category": "idea",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Les Epoques de la Nature (BnF)",
     "url": "https://gallica.bnf.fr/ark:/12148/bpt6k97544d"
    }
   ],
   "milestone": true
  },
  {
   "id": "malthus-essay",
   "year": 1798,
   "title": "Malthus argues population outruns subsistence",
   "description": "The Essay on the Principle of Population set a mathematical limit against human increase and made scarcity a permanent structural condition rather than a passing misfortune. Every later argument about planetary limits negotiates with it.",
   "category": "idea",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "An Essay on the Principle of Population (Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/4239"
    }
   ]
  },
  {
   "id": "humboldt-valencia",
   "year": 1800,
   "title": "Humboldt reads deforestation off a falling lake",
   "description": "At Lake Valencia in Venezuela, Humboldt connected the retreating water to the clearing of surrounding forest, and generalised it: forests hold moisture, and their removal changes rainfall, runoff and soil. It is the founding observation of ecological interconnection.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Wulf, The Invention of Nature",
     "url": "https://www.andreawulf.com/about-the-invention-of-nature.html"
    }
   ],
   "milestone": true
  },
  {
   "id": "humboldt-naturgemalde",
   "year": 1807,
   "title": "Humboldt publishes the Naturgemalde",
   "description": "The cross-section of Chimborazo plotted vegetation against altitude, temperature and pressure on a single sheet, showing nature as one connected system. It is arguably the first infographic of the Earth as a whole.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Naturgemalde (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Naturgem%C3%A4lde"
    }
   ]
  },
  {
   "id": "wordsworth-lakes",
   "year": 1810,
   "title": "Wordsworth calls the Lake District a sort of national property",
   "description": "The Guide to the Lakes described the region as a national property in which every man has a right and interest who has an eye to perceive and a heart to enjoy. The phrase is a direct ancestor of the national park idea.",
   "category": "idea",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Guide to the Lakes (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Guide_to_the_Lakes"
    }
   ]
  },
  {
   "id": "fourier-greenhouse",
   "year": 1824,
   "title": "Fourier asks why the Earth is warmer than it should be",
   "description": "Fourier calculated that a body at Earth's distance from the Sun should be far colder, and proposed that the atmosphere traps outgoing heat. The greenhouse question is posed, though not yet answered.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Fourier 1824 (translation)",
     "url": "https://geosci.uchicago.edu/~rtp1/papers/Fourier1827Trans.pdf"
    }
   ]
  },
  {
   "id": "hokusai-fuji",
   "year": 1831,
   "title": "Hokusai publishes Thirty-six Views of Mount Fuji",
   "description": "The series placed a single mountain at the centre of ordinary working life, and its prints reshaped European art after they reached Paris. Landscape became a way of seeing rather than a backdrop.",
   "category": "culture",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "notable",
   "references": [
    {
     "title": "Thirty-six Views of Mount Fuji (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Thirty-six_Views_of_Mount_Fuji"
    }
   ]
  },
  {
   "id": "thoreau-walden",
   "year": 1854,
   "title": "Thoreau publishes Walden",
   "description": "Walden made deliberate simplicity and close attention to a single pond into a moral argument, and Thoreau's later essays insisted that in wildness is the preservation of the world. His phenological records are now used as climate data.",
   "category": "culture",
   "frame": "sacred",
   "scale": "local",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Walden (Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/205"
    }
   ]
  },
  {
   "id": "foote-1856",
   "year": 1856,
   "title": "Eunice Newton Foote measures the warming power of carbonic acid gas",
   "description": "Foote filled glass cylinders with different gases and found that carbon dioxide in sunlight grew hottest and held heat longest, concluding that an atmosphere richer in it would give our earth a higher temperature. Her paper predates Tyndall's and was long overlooked.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Foote 1856, American Journal of Science",
     "url": "https://static1.squarespace.com/static/5b0dcf1e9d5abbdd4c463d09/t/5b3b8fc1352f53d1a4e37f26/1530611138613/Foote_Circumstances-Affecting-Heat-Suns-Rays_1856.pdf"
    }
   ],
   "milestone": true
  },
  {
   "id": "tyndall-1859",
   "year": 1859,
   "title": "Tyndall demonstrates which gases absorb heat",
   "description": "Tyndall's ratio spectrophotometer showed that water vapour and carbon dioxide absorb infrared radiation while the main atmospheric gases do not, giving the greenhouse effect a physical mechanism.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Tyndall 1861, Phil. Trans.",
     "url": "https://doi.org/10.1098/rstl.1861.0001"
    }
   ]
  },
  {
   "id": "alkali-act",
   "year": 1863,
   "title": "Britain's Alkali Act creates an industrial pollution inspectorate",
   "description": "Facing hydrochloric acid gas that stripped the countryside around chemical works, Parliament required works to condense their emissions and appointed inspectors with powers of entry. It is the first modern air pollution regulator.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "reaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Alkali Act 1863 (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Alkali_Act_1863"
    }
   ]
  },
  {
   "id": "marsh-man-and-nature",
   "year": 1864,
   "title": "Marsh's Man and Nature founds the study of human impact",
   "description": "George Perkins Marsh assembled evidence from the Mediterranean, the Alps and New England to argue that humanity had become a disturbing agent whose deforestation and drainage had ruined whole civilisations, and warned that the Earth could be reduced to a condition unfit for habitation. Lewis Mumford called it the fountainhead of the conservation movement.",
   "category": "warning",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Man and Nature (Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/37957"
    }
   ],
   "milestone": true
  },
  {
   "id": "jevons-coal-question",
   "year": 1865,
   "title": "Jevons states the rebound effect",
   "description": "The Coal Question argued that improvements in the efficiency of coal use would increase, not reduce, total consumption, because cheaper energy expands its own market. The paradox remains the sharpest objection to efficiency as a route to lower throughput.",
   "category": "warning",
   "frame": "threat",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "The Coal Question (Gutenberg)",
     "url": "https://www.gutenberg.org/ebooks/56317"
    }
   ]
  },
  {
   "id": "haeckel-oecologie",
   "year": 1866,
   "title": "Haeckel names ecology",
   "description": "Ernst Haeckel coined Oecologie for the science of the relations of the organism to its surrounding outer world. The discipline that would eventually measure planetary change gets its name.",
   "category": "idea",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Ecology, history (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/History_of_ecology"
    }
   ]
  },
  {
   "id": "bierstadt-moran",
   "year": 1872,
   "title": "Painters of the American West help create the parks",
   "description": "Albert Bierstadt's and Thomas Moran's canvases, and William Henry Jackson's photographs, were carried into Congress during the Yellowstone debate. Images made the case that no report had made.",
   "category": "culture",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Thomas Moran (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Thomas_Moran"
    }
   ]
  },
  {
   "id": "yellowstone-1872",
   "year": 1872,
   "title": "Yellowstone becomes the first national park",
   "description": "The United States withdrew two million acres from settlement and dedicated it as a public park for the benefit and enjoyment of the people. The model spread worldwide, and so did its founding erasure: the Indigenous nations who had lived there were excluded.",
   "category": "law",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Yellowstone National Park Protection Act",
     "url": "https://www.nps.gov/yell/learn/historyculture/park-history.htm"
    }
   ]
  },
  {
   "id": "stoppani-anthropozoic",
   "year": 1873,
   "title": "Stoppani proposes an anthropozoic era",
   "description": "The Italian geologist Antonio Stoppani argued that human activity constituted a new telluric force comparable in power and universality to the great forces of the Earth, and named the resulting era anthropozoic. Crutzen would later credit him as a precursor.",
   "category": "idea",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Anthropocene, history (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Anthropocene#History_of_the_concept"
    }
   ]
  },
  {
   "id": "marsh-adirondack",
   "year": 1885,
   "title": "New York creates the Adirondack Forest Preserve, forever wild",
   "description": "The state constitution was amended to keep the preserve forever wild, forbidding sale or logging. It is one of the strongest legal protections ever placed on a landscape, and it was argued on watershed grounds.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Adirondack Park (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Adirondack_Park"
    }
   ]
  },
  {
   "id": "bison-collapse",
   "year": 1889,
   "title": "The American bison falls below a thousand animals",
   "description": "From perhaps thirty million, the plains bison was reduced to a few hundred wild individuals within a single human generation, largely by commercial hide hunting and as deliberate policy against Plains nations. It became the founding example of industrial-scale extermination.",
   "category": "disaster",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "American bison (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/American_bison#Conservation"
    }
   ]
  },
  {
   "id": "muir-sierra-club",
   "year": 1892,
   "title": "John Muir founds the Sierra Club",
   "description": "Muir's writing recast wilderness as a place of spiritual necessity rather than raw material, and the club he founded made preservation a durable political force. The same tradition long treated inhabited landscapes as empty.",
   "category": "movement",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Sierra Club history",
     "url": "https://www.sierraclub.org/history"
    }
   ]
  },
  {
   "id": "arrhenius-1896",
   "year": 1896,
   "title": "Arrhenius calculates the warming from doubled carbonic acid",
   "description": "Working by hand through thousands of calculations, Svante Arrhenius estimated that halving or doubling atmospheric carbon dioxide would change surface temperature by several degrees, and, with Hogbom, noted that industry was adding it. He expected the warming to be slow and rather welcome.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Arrhenius 1896, Phil. Mag.",
     "url": "https://doi.org/10.1080/14786449608620846"
    }
   ],
   "milestone": true
  },
  {
   "id": "chamberlin-1899",
   "year": 1899,
   "title": "Chamberlin proposes carbon dioxide as a driver of ice ages",
   "description": "T. C. Chamberlin developed a geological theory in which the slow exchange of carbon between rock, ocean and air governed the great climatic changes of Earth history, tying climate to the carbon cycle.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Chamberlin 1899, J. Geology",
     "url": "https://doi.org/10.1086/608449"
    }
   ]
  },
  {
   "id": "migratory-bird-1900",
   "year": 1900,
   "title": "The Lacey Act bans interstate trade in illegally taken wildlife",
   "description": "The first federal wildlife law in the United States addressed the market hunting that was emptying the skies, notably of passenger pigeons and plume birds. Trade, not hunting itself, was identified as the lever.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "reaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Lacey Act (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Lacey_Act_of_1900"
    }
   ]
  },
  {
   "id": "haber-bosch",
   "year": 1913,
   "title": "The Haber-Bosch process fixes nitrogen from air",
   "description": "Industrial ammonia synthesis broke the natural limit on soil fertility and now feeds roughly half of humanity. It also doubled the reactive nitrogen circulating in the biosphere, and nitrogen flows are among the most severely transgressed planetary boundaries.",
   "category": "technology",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Haber process (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Haber_process"
    },
    {
     "title": "Erisman et al. 2008, Nature Geoscience",
     "url": "https://doi.org/10.1038/ngeo325"
    }
   ],
   "milestone": true
  },
  {
   "id": "passenger-pigeon",
   "year": 1914,
   "title": "Martha, the last passenger pigeon, dies in Cincinnati",
   "description": "A species that had darkened the sky in flocks of billions ended in a zoo cage within fifty years. No single event did more to establish that abundance is no protection against extinction.",
   "category": "disaster",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Passenger pigeon (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Passenger_pigeon"
    }
   ]
  },
  {
   "id": "us-national-park-service",
   "year": 1916,
   "title": "The United States creates the National Park Service",
   "description": "The Organic Act charged the new service to conserve the scenery and the natural and historic objects and the wild life therein, and to leave them unimpaired for future generations. The phrase made intergenerational duty a statutory obligation.",
   "category": "institution",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "NPS Organic Act",
     "url": "https://www.nps.gov/grba/learn/management/organic-act-of-1916.htm"
    }
   ]
  },
  {
   "id": "migratory-bird-treaty",
   "year": 1918,
   "title": "The Migratory Bird Treaty Act enacts a transboundary wildlife pact",
   "description": "Implementing a convention with Great Britain on behalf of Canada, the act recognised that birds ignore borders and that their protection therefore cannot be national. It is an early template for international environmental law.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Migratory Bird Treaty Act (USFWS)",
     "url": "https://www.fws.gov/law/migratory-bird-treaty-act-1918"
    }
   ]
  },
  {
   "id": "leaded-petrol",
   "year": 1923,
   "title": "Tetraethyl lead is added to petrol",
   "description": "Marketed as a solution to engine knock, leaded petrol dispersed lead across the entire planet. Clair Patterson's later measurements showed contamination in ice and ocean everywhere, and it took until 2021 for the last country to stop selling it.",
   "category": "technology",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Tetraethyllead (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Tetraethyllead"
    },
    {
     "title": "UNEP: era of leaded petrol over",
     "url": "https://www.unep.org/news-and-stories/press-release/era-leaded-petrol-over-eliminating-major-threat-human-and"
    }
   ]
  },
  {
   "id": "vernadsky-biosphere",
   "year": 1926,
   "title": "Vernadsky publishes The Biosphere",
   "description": "Vladimir Vernadsky described life as a geological force that has transformed the chemistry of the planet's surface over billions of years, and treated the biosphere as a single thermodynamic envelope. It is the conceptual ancestor of Earth system science.",
   "category": "idea",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "The Biosphere (Springer)",
     "url": "https://doi.org/10.1007/978-1-4612-1750-3"
    }
   ],
   "milestone": true
  },
  {
   "id": "leroy-teilhard-noosphere",
   "year": 1927,
   "title": "Le Roy and Teilhard name the noosphere",
   "description": "Building on Vernadsky's lectures in Paris, Edouard Le Roy and Pierre Teilhard de Chardin proposed a layer of thought enveloping the biosphere. The idea that mind becomes a planetary force enters circulation.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Noosphere (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Noosphere"
    }
   ]
  },
  {
   "id": "dust-bowl",
   "year": 1935,
   "title": "Black Sunday and the Dust Bowl",
   "description": "A dust storm carried plains topsoil to Washington and out over the Atlantic, arriving as Congress debated soil legislation. The Soil Conservation Service was created within weeks; ecological catastrophe had produced a permanent federal agency.",
   "category": "disaster",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Dust Bowl (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Dust_Bowl"
    }
   ],
   "milestone": true
  },
  {
   "id": "callendar-1938",
   "year": 1938,
   "title": "Callendar links rising carbon dioxide to observed warming",
   "description": "Guy Callendar assembled temperature records from 147 stations and argued that fuel combustion had raised atmospheric carbon dioxide and warmed the world. Reviewers were sceptical; he thought the warming would be beneficial.",
   "category": "observation",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Callendar 1938, QJRMS",
     "url": "https://doi.org/10.1002/qj.49706427503"
    }
   ]
  },
  {
   "id": "ansel-adams",
   "year": 1941,
   "title": "Ansel Adams photographs the American wilderness",
   "description": "Adams's prints, made partly on federal commission, became the visual grammar of American conservation and were used directly in Sierra Club campaigns. They also framed wilderness as unpeopled.",
   "category": "culture",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Ansel Adams (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Ansel_Adams"
    }
   ]
  },
  {
   "id": "milankovitch",
   "year": 1941,
   "title": "Milankovic ties ice ages to Earth's orbit",
   "description": "Milutin Milankovic calculated how eccentricity, obliquity and precession change the sunlight reaching high latitudes, and proposed that these cycles pace glaciations. Confirmation came from deep-sea cores three decades later.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Milankovitch cycles (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Milankovitch_cycles"
    }
   ]
  },
  {
   "id": "ddt-introduced",
   "year": 1943,
   "title": "DDT is deployed as a miracle insecticide",
   "description": "Effective against typhus and malaria vectors, DDT won Paul Muller a Nobel Prize and was sprayed indiscriminately for two decades. Its persistence and biomagnification through food webs became Carson's central case.",
   "category": "technology",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "DDT (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/DDT"
    }
   ]
  },
  {
   "id": "osborn-plundered-planet",
   "year": 1948,
   "title": "Fairfield Osborn publishes Our Plundered Planet",
   "description": "Osborn described a global accounting of soil loss, deforestation and water depletion, and argued that the war against nature would prove more consequential than the war just ended. Published within weeks of Vogt's Road to Survival, it opened the postwar limits debate.",
   "category": "warning",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Our Plundered Planet (Internet Archive)",
     "url": "https://archive.org/details/ourplunderedplan0000osbo"
    }
   ]
  },
  {
   "id": "iucn-founded",
   "year": 1948,
   "title": "IUCN is founded at Fontainebleau",
   "description": "The International Union for the Protection of Nature brought governments and scientific bodies into a single conservation organisation. It would go on to produce the Red List, the standard global measure of extinction risk.",
   "category": "institution",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "IUCN history",
     "url": "https://www.iucn.org/about-iucn/history"
    }
   ]
  },
  {
   "id": "vogt-road-to-survival",
   "year": 1948,
   "title": "Vogt's Road to Survival ties carrying capacity to politics",
   "description": "William Vogt made carrying capacity a household term and argued for limits on population and consumption. It was a bestseller, and it also carried the coercive strain that would trouble the movement for decades.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Road to Survival (Internet Archive)",
     "url": "https://archive.org/details/roadtosurvival0000vogt"
    }
   ]
  },
  {
   "id": "leopold-land-ethic",
   "year": 1949,
   "title": "Leopold's Land Ethic enlarges the boundaries of community",
   "description": "A Sand County Almanac argued that a thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community, and enlarged ethics to include soils, waters, plants and animals. It remains the most quoted sentence in environmental ethics.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "A Sand County Almanac (Aldo Leopold Foundation)",
     "url": "https://www.aldoleopold.org/about/aldo-leopold/sand-county-almanac/"
    }
   ],
   "milestone": true
  },
  {
   "id": "london-smog-1952",
   "year": 1952,
   "title": "The Great Smog of London kills thousands",
   "description": "Five days of coal smoke trapped under an inversion killed an estimated four to twelve thousand people. It produced the Clean Air Act of 1956 and made air pollution a matter of measurable mortality rather than nuisance.",
   "category": "disaster",
   "frame": "threat",
   "scale": "local",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Great Smog of London (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Great_Smog_of_London"
    }
   ],
   "milestone": true
  },
  {
   "id": "too-cheap-to-meter",
   "year": 1954,
   "title": "Nuclear electricity is promised as too cheap to meter",
   "description": "Lewis Strauss told science writers that their children would enjoy electrical energy too cheap to meter. The phrase became the standing example of a technological promise outrunning any engineering basis.",
   "category": "technology",
   "frame": "mastery",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Too cheap to meter (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Too_cheap_to_meter"
    }
   ]
  },
  {
   "id": "suess-effect",
   "year": 1955,
   "title": "Hans Suess detects fossil carbon in the air",
   "description": "Radiocarbon measurements in tree rings showed atmospheric carbon being diluted by carbon from ancient fuels, which contain none. The isotopic fingerprint identifying the source of the increase was established before the Keeling curve began.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Suess effect (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Suess_effect"
    }
   ]
  },
  {
   "id": "minamata-disease",
   "year": 1956,
   "title": "Minamata disease is identified",
   "description": "Methylmercury discharged by the Chisso corporation into Minamata Bay poisoned thousands through fish, causing severe neurological damage and birth defects. The long fight for recognition became the template for industrial pollution litigation worldwide.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "eastasia",
   "significance": "major",
   "references": [
    {
     "title": "Minamata disease (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Minamata_disease"
    }
   ],
   "milestone": true
  },
  {
   "id": "revelle-suess",
   "year": 1957,
   "title": "Revelle and Suess call fossil fuel burning a great geophysical experiment",
   "description": "Their paper showed that the ocean could not absorb industrial carbon dioxide as fast as had been assumed, and described humanity as carrying out a large scale geophysical experiment of a kind that could not happen in the past nor be reproduced in the future.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Revelle & Suess 1957, Tellus",
     "url": "https://doi.org/10.3402/tellusa.v9i1.9075"
    }
   ]
  },
  {
   "id": "igy-1957",
   "year": 1957,
   "title": "The International Geophysical Year measures the planet as one object",
   "description": "Sixty-seven nations coordinated observations of the atmosphere, oceans, ice and near space across eighteen months. It established the practice of studying Earth as a single system and produced the institutions that still monitor it.",
   "category": "institution",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "International Geophysical Year (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/International_Geophysical_Year"
    }
   ]
  },
  {
   "id": "keeling-curve",
   "year": 1958,
   "title": "Keeling begins continuous carbon dioxide measurement at Mauna Loa",
   "description": "Charles David Keeling's instrument produced the first unambiguous record of rising atmospheric carbon dioxide, complete with the breathing of the northern hemisphere's forests. It is the single most consequential time series in Earth science.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Keeling Curve (Scripps)",
     "url": "https://keelingcurve.ucsd.edu/"
    }
   ],
   "milestone": true
  },
  {
   "id": "antarctic-treaty",
   "year": 1959,
   "title": "The Antarctic Treaty sets a continent aside for peace and science",
   "description": "Twelve nations agreed to suspend territorial claims, ban military activity and guarantee scientific freedom across an entire continent. It remains the strongest demonstration that a shared commons can be governed cooperatively.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Antarctic Treaty (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Antarctic_Treaty_System"
    }
   ]
  },
  {
   "id": "aral-sea",
   "year": 1960,
   "title": "Soviet irrigation begins draining the Aral Sea",
   "description": "Diverting the Amu Darya and Syr Darya for cotton reduced the world's fourth-largest lake to a tenth of its volume, collapsing a fishery, salting the land and raising local infant mortality. It is the largest deliberate destruction of a water body in history.",
   "category": "disaster",
   "frame": "loss",
   "scale": "regional",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "westasia",
   "significance": "major",
   "references": [
    {
     "title": "Aral Sea (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Aral_Sea"
    }
   ]
  },
  {
   "id": "silent-spring",
   "year": 1962,
   "title": "Rachel Carson publishes Silent Spring",
   "description": "Carson's account of persistent pesticides moving through food webs, and of a spring without birdsong, reached a mass audience and survived a ferocious industry campaign against her. It converted ecology into public politics and is the closest thing the movement has to a founding text.",
   "category": "culture",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Silent Spring (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Silent_Spring"
    }
   ],
   "milestone": true
  },
  {
   "id": "wilderness-act",
   "year": 1964,
   "title": "The Wilderness Act defines land where man himself is a visitor",
   "description": "The United States created a legal category for areas retaining their primeval character, untrammelled by man. The definition encoded a particular idea of nature as a place without people, which later scholarship contested sharply.",
   "category": "law",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Wilderness Act (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Wilderness_Act"
    }
   ]
  },
  {
   "id": "green-revolution",
   "year": 1965,
   "title": "The Green Revolution raises cereal yields across Asia",
   "description": "Dwarf wheat and rice varieties, irrigation and fertiliser roughly tripled yields and averted predicted famines, winning Norman Borlaug the Nobel Peace Prize. The same package produced aquifer depletion, nitrogen runoff and the loss of thousands of landraces.",
   "category": "technology",
   "frame": "mastery",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "Green Revolution (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Green_Revolution"
    }
   ],
   "milestone": true
  },
  {
   "id": "ward-spaceship-earth",
   "year": 1966,
   "title": "Barbara Ward popularises Spaceship Earth",
   "description": "Ward's book made the image of a small fragile craft with finite supplies into common political language, and she would go on to co-author the report that framed the Stockholm conference.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Barbara Ward (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Barbara_Ward,_Baroness_Jackson_of_Lodsworth"
    }
   ]
  },
  {
   "id": "boulding-spaceship-earth",
   "year": 1966,
   "title": "Boulding contrasts the cowboy economy with spaceship Earth",
   "description": "Kenneth Boulding argued that the open frontier economy of reckless throughput must give way to a closed spaceman economy in which the measure of success is not consumption but the quality of the stock. It is the founding statement of ecological economics.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "The Economics of the Coming Spaceship Earth",
     "url": "https://www.ub.edu/prometheus21/articulos/obsprometheus/BOULDING.pdf"
    }
   ]
  },
  {
   "id": "st-francis-lynn-white",
   "year": 1967,
   "title": "Lynn White blames Western Christianity for the ecologic crisis",
   "description": "White argued that a reading of Genesis granting dominion had licensed the exploitation of nature, and that no solution would come from more technology alone. The essay opened decades of debate on religion, worldview and ecology. Most of the evidence for it came from the United States. A 2026 survey of some 14,500 people in sixteen countries found religious commitment strengthening a spiritual view of nature in fifteen of them, Christian countries included, and weakening it only in the United States — and there only once personal spirituality is set aside.",
   "category": "idea",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "White 1967, Science",
     "url": "https://doi.org/10.1126/science.155.3767.1203"
    },
    {
     "title": "Billet & Baimel 2026, Journal of Environmental Psychology",
     "url": "https://doi.org/10.1016/j.jenvp.2026.103216"
    }
   ]
  },
  {
   "id": "torrey-canyon",
   "year": 1967,
   "title": "The Torrey Canyon spills oil across the Cornish coast",
   "description": "The first great tanker disaster spread over a hundred thousand tonnes of crude, and the response, including bombing the wreck and spraying toxic detergents, did further damage. Modern marine pollution law grew from the wreckage.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Torrey Canyon oil spill (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Torrey_Canyon_oil_spill"
    }
   ]
  },
  {
   "id": "earthrise",
   "year": 1968,
   "title": "Earthrise is photographed from lunar orbit",
   "description": "William Anders' photograph from Apollo 8 showed a blue Earth rising over a dead horizon, and was credited by Wallace Stegner and many others with launching the environmental movement. We went to the Moon and discovered the Earth.",
   "category": "culture",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Earthrise (NASA)",
     "url": "https://www.nasa.gov/image-article/apollo-8-earthrise/"
    }
   ],
   "milestone": true
  },
  {
   "id": "hardin-commons",
   "year": 1968,
   "title": "Hardin publishes The Tragedy of the Commons",
   "description": "The essay argued that shared resources are inevitably destroyed by individually rational users, and became one of the most cited papers in the social sciences. Ostrom's later fieldwork showed that real commons are frequently governed successfully, and Hardin's coercive politics have not aged well.",
   "category": "idea",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Hardin 1968, Science",
     "url": "https://doi.org/10.1126/science.162.3859.1243"
    }
   ]
  },
  {
   "id": "cuyahoga-fire",
   "year": 1969,
   "title": "The Cuyahoga River catches fire",
   "description": "An oil-slicked river burning in Cleveland became a national emblem of industrial pollution, though it was the thirteenth such fire on that river. The image helped produce the Clean Water Act.",
   "category": "disaster",
   "frame": "threat",
   "scale": "local",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Cuyahoga River fire (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Cuyahoga_River#Fires"
    }
   ]
  },
  {
   "id": "santa-barbara-spill",
   "year": 1969,
   "title": "The Santa Barbara oil spill mobilises a movement",
   "description": "Three million gallons fouled the Californian coast in full view of television cameras. The outrage fed directly into the first Earth Day and into the National Environmental Policy Act.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "1969 Santa Barbara oil spill (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/1969_Santa_Barbara_oil_spill"
    }
   ]
  },
  {
   "id": "nepa-1970",
   "year": 1970,
   "title": "NEPA requires environmental impact statements",
   "description": "The National Environmental Policy Act obliged United States federal agencies to assess and disclose the environmental consequences of their actions before taking them. Impact assessment became the most widely copied environmental procedure in the world.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "NEPA (EPA)",
     "url": "https://www.epa.gov/nepa"
    }
   ]
  },
  {
   "id": "us-clean-air-act",
   "year": 1970,
   "title": "The United States Clean Air Act sets national standards",
   "description": "The act required health-based air quality standards regardless of cost and has since prevented an estimated hundreds of thousands of premature deaths a year. Its authority was later used to regulate greenhouse gases.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Clean Air Act (EPA)",
     "url": "https://www.epa.gov/clean-air-act-overview"
    }
   ]
  },
  {
   "id": "epa-founded",
   "year": 1970,
   "title": "The United States Environmental Protection Agency is created",
   "description": "Nixon consolidated scattered federal functions into a single regulator with enforcement power. Within four years it had banned DDT and begun phasing lead out of petrol.",
   "category": "institution",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "EPA history",
     "url": "https://www.epa.gov/history"
    }
   ]
  },
  {
   "id": "earth-day-1970",
   "year": 1970,
   "title": "The first Earth Day brings twenty million Americans into the street",
   "description": "Organised by Gaylord Nelson and Denis Hayes, it was among the largest single-day demonstrations in United States history and turned a diffuse concern into a constituency. The Environmental Protection Agency followed within months.",
   "category": "movement",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Earth Day (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Earth_Day"
    }
   ]
  },
  {
   "id": "georgescu-roegen",
   "year": 1971,
   "title": "Georgescu-Roegen brings entropy into economics",
   "description": "The Entropy Law and the Economic Process argued that economic activity irreversibly degrades available energy and matter, so growth cannot be perpetual. It founded the field that ecological economics became.",
   "category": "idea",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "The Entropy Law and the Economic Process",
     "url": "https://www.hup.harvard.edu/books/9780674257801"
    }
   ]
  },
  {
   "id": "greenpeace-founded",
   "year": 1971,
   "title": "Greenpeace sails to Amchitka",
   "description": "A chartered fishing boat set out to bear witness against a United States nuclear test in Alaska. The tactic of putting bodies and cameras between harm and its target became a durable form of environmental politics.",
   "category": "movement",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Greenpeace history",
     "url": "https://www.greenpeace.org/international/story/11674/the-founders-of-greenpeace/"
    }
   ]
  },
  {
   "id": "ramsar-1971",
   "year": 1971,
   "title": "The Ramsar Convention protects wetlands internationally",
   "description": "The first modern global treaty devoted to an ecosystem type committed parties to designate and maintain wetlands of international importance, chiefly for waterbirds. It predates the Stockholm conference.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "westasia",
   "significance": "notable",
   "references": [
    {
     "title": "Ramsar Convention",
     "url": "https://www.ramsar.org/"
    }
   ]
  },
  {
   "id": "blue-marble",
   "year": 1972,
   "title": "Apollo 17 photographs the Blue Marble",
   "description": "The whole illuminated disc of Earth, taken by hand from 45,000 kilometres out, became one of the most reproduced images ever made. It arrived six months after Stockholm and gave the new politics its icon.",
   "category": "culture",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "The Blue Marble (NASA)",
     "url": "https://www.nasa.gov/image-article/blue-marble-image-of-earth-from-apollo-17/"
    }
   ]
  },
  {
   "id": "gaia-hypothesis",
   "year": 1972,
   "title": "Lovelock and Margulis propose the Gaia hypothesis",
   "description": "The claim that the biosphere actively regulates the chemistry and temperature of the planet was long dismissed as teleological, and became foundational to Earth system science once restated in cybernetic terms.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Lovelock & Margulis 1974, Tellus",
     "url": "https://doi.org/10.3402/tellusa.v26i1-2.9731"
    }
   ]
  },
  {
   "id": "us-clean-water-act",
   "year": 1972,
   "title": "The Clean Water Act makes discharge unlawful without permit",
   "description": "Rather than setting acceptable pollution levels, the act prohibited discharge outright unless permitted, reversing the burden of proof. Rivers that had caught fire became swimmable.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Clean Water Act (EPA)",
     "url": "https://www.epa.gov/laws-regulations/summary-clean-water-act"
    }
   ]
  },
  {
   "id": "limits-to-growth",
   "year": 1972,
   "title": "The Limits to Growth models a finite world",
   "description": "Meadows and colleagues ran a global systems model at MIT and found that unchecked growth in population, industry and pollution led to overshoot and collapse in most scenarios. It sold tens of millions of copies, was widely declared discredited, and has tracked observed data closely ever since.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "The Limits to Growth (Club of Rome)",
     "url": "https://www.clubofrome.org/publication/the-limits-to-growth/"
    },
    {
     "title": "Herrington 2021, J. Industrial Ecology",
     "url": "https://doi.org/10.1111/jiec.13084"
    }
   ],
   "milestone": true
  },
  {
   "id": "stockholm-1972",
   "year": 1972,
   "title": "The Stockholm Conference makes the environment a matter of international politics",
   "description": "The United Nations Conference on the Human Environment gathered 113 states and produced a declaration of 26 principles asserting a human right to an environment of a quality that permits a life of dignity. It is the origin point of global environmental governance.",
   "category": "institution",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Stockholm Declaration (UN)",
     "url": "https://www.un.org/en/conferences/environment/stockholm1972"
    }
   ],
   "milestone": true
  },
  {
   "id": "unep-founded",
   "year": 1972,
   "title": "UNEP is established in Nairobi",
   "description": "The United Nations Environment Programme became the first UN body headquartered in the global South, with a mandate to coordinate environmental action across the system. Its authority was deliberately kept modest.",
   "category": "institution",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "africa",
   "significance": "major",
   "references": [
    {
     "title": "UNEP",
     "url": "https://www.unep.org/who-we-are/about-us"
    }
   ]
  },
  {
   "id": "naess-deep-ecology",
   "year": 1973,
   "title": "Arne Naess distinguishes shallow from deep ecology",
   "description": "Naess contrasted a shallow movement fighting pollution for the health of the affluent with a deep movement asserting the intrinsic value of nonhuman life and the need for fundamental change. The split still structures environmental thought.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Naess 1973, Inquiry",
     "url": "https://doi.org/10.1080/00201747308601682"
    }
   ]
  },
  {
   "id": "cites-1973",
   "year": 1973,
   "title": "CITES regulates trade in endangered species",
   "description": "The convention created a permit system for international commerce in listed species, addressing extinction through the market rather than through habitat. It now covers around 40,000 species.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "CITES",
     "url": "https://cites.org/eng/disc/what.php"
    }
   ]
  },
  {
   "id": "soylent-green",
   "year": 1973,
   "title": "Soylent Green imagines an exhausted planet",
   "description": "Set in 2022, the film depicted a New York of permanent heat, vanished animals and synthetic food. Ecological collapse entered mass entertainment as a setting rather than a warning.",
   "category": "culture",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "minor",
   "references": [
    {
     "title": "Soylent Green (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Soylent_Green"
    }
   ]
  },
  {
   "id": "chipko",
   "year": 1973,
   "title": "The Chipko movement embraces the trees",
   "description": "Villagers in Uttarakhand, mostly women, physically encircled trees to stop commercial felling, drawing on older Bishnoi traditions. Chipko reframed forest protection as a livelihood and rights struggle led from the global South.",
   "category": "movement",
   "frame": "sacred",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "Chipko movement (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Chipko_movement"
    }
   ],
   "milestone": true
  },
  {
   "id": "us-endangered-species-act",
   "year": 1973,
   "title": "The Endangered Species Act makes extinction unlawful",
   "description": "The act obliged United States agencies to prevent jeopardy to listed species regardless of cost, a standard the Supreme Court upheld in the snail darter case. It remains among the strongest biodiversity laws anywhere.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Endangered Species Act (USFWS)",
     "url": "https://www.fws.gov/law/endangered-species-act"
    }
   ]
  },
  {
   "id": "molina-rowland",
   "year": 1974,
   "title": "Molina and Rowland warn that CFCs destroy stratospheric ozone",
   "description": "Two chemists showed that inert refrigerants would drift to the stratosphere, break under ultraviolet light, and catalytically destroy ozone. Industry called it science fiction; they later shared the Nobel Prize.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Molina & Rowland 1974, Nature",
     "url": "https://doi.org/10.1038/249810a0"
    }
   ]
  },
  {
   "id": "broecker-1975",
   "year": 1975,
   "title": "Broecker asks whether we are on the brink of pronounced global warming",
   "description": "Wallace Broecker's Science paper argued that aerosol cooling was masking greenhouse warming that would emerge in the following decades, and it put the phrase global warming into scientific circulation. His projection has held up well.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Broecker 1975, Science",
     "url": "https://doi.org/10.1126/science.189.4201.460"
    }
   ]
  },
  {
   "id": "catalytic-converter",
   "year": 1975,
   "title": "The catalytic converter cleans tailpipe emissions",
   "description": "Mandated in the United States, it cut carbon monoxide, hydrocarbons and nitrogen oxides sharply and demonstrated that regulation could force a technical fix at scale. It did nothing about carbon dioxide, and vehicle numbers went on rising.",
   "category": "technology",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Catalytic converter (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Catalytic_converter"
    }
   ]
  },
  {
   "id": "seveso",
   "year": 1976,
   "title": "The Seveso dioxin release contaminates northern Italy",
   "description": "A runaway reaction dispersed dioxin over inhabited land, killing thousands of animals and causing chloracne in children. The European Union's Seveso Directives on industrial hazards are named after it.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Seveso disaster (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Seveso_disaster"
    }
   ]
  },
  {
   "id": "daly-steady-state",
   "year": 1977,
   "title": "Herman Daly sets out the steady-state economy",
   "description": "Daly argued that the economy is a subsystem of a finite biosphere and that physical throughput must therefore stabilise, while qualitative development continues. It is the most fully worked alternative to growth economics.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Steady-state economy (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Steady-state_economy"
    }
   ]
  },
  {
   "id": "green-belt-movement",
   "year": 1977,
   "title": "Wangari Maathai founds the Green Belt Movement",
   "description": "Kenyan women began planting trees to restore soil, secure fuelwood and assert land rights, eventually planting tens of millions. Maathai received the Nobel Peace Prize in 2004, the first awarded for environmental work.",
   "category": "movement",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "africa",
   "significance": "major",
   "references": [
    {
     "title": "Green Belt Movement",
     "url": "http://www.greenbeltmovement.org/wangari-maathai"
    }
   ],
   "milestone": true
  },
  {
   "id": "love-canal",
   "year": 1978,
   "title": "Love Canal is evacuated",
   "description": "A neighbourhood built over 20,000 tonnes of buried chemical waste in Niagara Falls was evacuated after residents documented illness clusters themselves. The scandal produced the United States Superfund law.",
   "category": "disaster",
   "frame": "threat",
   "scale": "local",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Love Canal (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Love_Canal"
    }
   ]
  },
  {
   "id": "charney-report",
   "year": 1979,
   "title": "The Charney Report fixes climate sensitivity",
   "description": "A United States National Academy panel concluded that doubling carbon dioxide would warm the world by 1.5 to 4.5 degrees, and found no reason to believe these changes will be negligible. The range stood essentially unchanged for forty years.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Carbon Dioxide and Climate: A Scientific Assessment",
     "url": "https://doi.org/10.17226/12181"
    }
   ]
  },
  {
   "id": "first-world-climate-conference",
   "year": 1979,
   "title": "The First World Climate Conference calls for action",
   "description": "Meeting in Geneva, scientists issued an appeal to the nations of the world to foresee and prevent potential man-made changes in climate. The World Climate Programme followed.",
   "category": "institution",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "World Climate Conference (WMO)",
     "url": "https://public.wmo.int/en"
    }
   ]
  },
  {
   "id": "earth-first",
   "year": 1980,
   "title": "Earth First! adopts direct action for wilderness",
   "description": "Founded on the slogan no compromise in defence of Mother Earth, the group used blockades and tree-sitting where mainstream lobbying had failed. Its tactics widened the range of what counted as environmental politics, and its early rhetoric drew justified criticism.",
   "category": "movement",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "minor",
   "references": [
    {
     "title": "Earth First! (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Earth_First!"
    }
   ]
  },
  {
   "id": "global-2000",
   "year": 1980,
   "title": "The Global 2000 Report to the President projects a degraded world",
   "description": "Commissioned by Carter, it forecast that by 2000 the world would be more crowded, more polluted, less stable ecologically. It was the first whole-of-government long-range environmental assessment, and it was shelved by the incoming administration.",
   "category": "warning",
   "frame": "threat",
   "scale": "national",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "The Global 2000 Report (Internet Archive)",
     "url": "https://archive.org/details/global2000report0000unit"
    }
   ]
  },
  {
   "id": "world-conservation-strategy",
   "year": 1980,
   "title": "The World Conservation Strategy introduces sustainable development",
   "description": "IUCN, UNEP and WWF jointly argued that conservation and development are interdependent, and put the phrase sustainable development into international circulation seven years before Brundtland.",
   "category": "idea",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "World Conservation Strategy (IUCN)",
     "url": "https://portals.iucn.org/library/node/6424"
    }
   ]
  },
  {
   "id": "koyaanisqatsi",
   "year": 1982,
   "title": "Koyaanisqatsi shows the accelerating world without words",
   "description": "Godfrey Reggio's wordless film set time-lapse industry and cities against desert and cloud, taking its title from the Hopi for life out of balance. It made the Great Acceleration visible two decades before the curves were published.",
   "category": "culture",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Koyaanisqatsi (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Koyaanisqatsi"
    }
   ]
  },
  {
   "id": "world-charter-nature",
   "year": 1982,
   "title": "The UN World Charter for Nature asserts intrinsic value",
   "description": "The General Assembly proclaimed that every form of life is unique, warranting respect regardless of its worth to man. It is the strongest statement of nonhuman value in UN instruments, and it is non-binding.",
   "category": "law",
   "frame": "sacred",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "World Charter for Nature (UN)",
     "url": "https://digitallibrary.un.org/record/39295"
    }
   ]
  },
  {
   "id": "warren-county-pcb",
   "year": 1982,
   "title": "Warren County protests name environmental racism",
   "description": "Residents of a majority-Black county in North Carolina lay down in front of trucks carrying PCB-contaminated soil. The arrests and the subsequent studies established that pollution burdens fall along racial lines, and founded the environmental justice movement.",
   "category": "movement",
   "frame": "care",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Warren County PCB landfill (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Warren_County_PCB_Landfill"
    }
   ],
   "milestone": true
  },
  {
   "id": "bhopal",
   "year": 1984,
   "title": "The Bhopal gas disaster kills thousands overnight",
   "description": "Methyl isocyanate escaped from a Union Carbide plant into a sleeping city, killing several thousand within days and injuring hundreds of thousands. It remains the worst industrial disaster in history, and the site is still contaminated.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "Bhopal disaster (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Bhopal_disaster"
    }
   ],
   "milestone": true
  },
  {
   "id": "ozone-hole-discovery",
   "year": 1985,
   "title": "Farman, Gardiner and Shanklin report the Antarctic ozone hole",
   "description": "British Antarctic Survey measurements showed springtime ozone over Halley had fallen by a third, a loss so large that satellite processing had been discarding it as error. The gap between a warning and its confirmation had closed in a decade.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Farman et al. 1985, Nature",
     "url": "https://doi.org/10.1038/315207a0"
    }
   ]
  },
  {
   "id": "narmada-bachao",
   "year": 1985,
   "title": "The Narmada Bachao Andolan opposes large dams",
   "description": "A movement of displaced villagers, farmers and activists challenged the Sardar Sarovar project, forcing the World Bank's first independent review of one of its own loans and its subsequent withdrawal. Development itself was put on trial.",
   "category": "movement",
   "frame": "care",
   "scale": "national",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "southasia",
   "significance": "notable",
   "references": [
    {
     "title": "Narmada Bachao Andolan (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Narmada_Bachao_Andolan"
    }
   ]
  },
  {
   "id": "chernobyl",
   "year": 1986,
   "title": "Chernobyl reactor four explodes",
   "description": "The worst nuclear accident in history contaminated large areas of Ukraine, Belarus and Russia and deposited caesium across Europe. It hardened opposition to nuclear power at exactly the moment climate science was calling for low-carbon energy.",
   "category": "disaster",
   "frame": "threat",
   "scale": "international",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Chernobyl disaster (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Chernobyl_disaster"
    }
   ],
   "milestone": true
  },
  {
   "id": "broecker-conveyor",
   "year": 1987,
   "title": "Broecker describes the ocean's conveyor belt",
   "description": "The idea that a single global circulation carries heat and carbon between basins, and can switch modes abruptly, made abrupt climate change physically plausible. It underlies present concern about the Atlantic overturning circulation.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Thermohaline circulation (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Thermohaline_circulation"
    }
   ]
  },
  {
   "id": "brundtland-report",
   "year": 1987,
   "title": "Our Common Future defines sustainable development",
   "description": "The World Commission on Environment and Development defined development that meets the needs of the present without compromising the ability of future generations to meet their own needs. The definition unified a movement and was criticised ever after for making growth and limits appear compatible.",
   "category": "idea",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Our Common Future (UN)",
     "url": "https://sustainabledevelopment.un.org/content/documents/5987our-common-future.pdf"
    }
   ],
   "milestone": true
  },
  {
   "id": "montreal-protocol",
   "year": 1987,
   "title": "The Montreal Protocol phases out ozone-depleting substances",
   "description": "Signed two years after the hole was confirmed, the protocol has been ratified by every UN member state and has eliminated around 99 per cent of controlled substances. It is the only global environmental treaty that unambiguously worked, and the ozone layer is on track to recover.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Montreal Protocol (UNEP)",
     "url": "https://www.unep.org/ozonaction/who-we-are/about-montreal-protocol"
    }
   ],
   "milestone": true
  },
  {
   "id": "vostok-ice-core",
   "year": 1987,
   "title": "Vostok ice cores link carbon dioxide and temperature over 160,000 years",
   "description": "Air bubbles in Antarctic ice showed carbon dioxide and temperature moving together across two glacial cycles. The graph became the most persuasive single image in climate communication.",
   "category": "observation",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Barnola et al. 1987, Nature",
     "url": "https://doi.org/10.1038/329408a0"
    }
   ]
  },
  {
   "id": "hansen-testimony",
   "year": 1988,
   "title": "Hansen tells the US Senate that global warming has begun",
   "description": "James Hansen testified that he was 99 per cent confident the warming was real and caused by the greenhouse effect. The hearing put climate change on front pages worldwide and made it a political question.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Hansen 1988 testimony (NASA GISS)",
     "url": "https://pubs.giss.nasa.gov/abs/ha02700w.html"
    }
   ],
   "milestone": true
  },
  {
   "id": "ipcc-founded",
   "year": 1988,
   "title": "The IPCC is established",
   "description": "WMO and UNEP created a body to assess the published science and report to governments without conducting research of its own. Its consensus procedure makes it conservative by design, a property that is both its authority and its weakness.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IPCC",
     "url": "https://www.ipcc.ch/about/"
    }
   ]
  },
  {
   "id": "basel-convention",
   "year": 1989,
   "title": "The Basel Convention restricts hazardous waste exports",
   "description": "Adopted after scandals over toxic cargoes dumped in West Africa, the convention controls transboundary movement of hazardous waste. It is the first treaty to address the geography of environmental harm directly.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "reaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Basel Convention",
     "url": "https://www.basel.int/"
    }
   ]
  },
  {
   "id": "exxon-valdez",
   "year": 1989,
   "title": "The Exxon Valdez runs aground in Prince William Sound",
   "description": "Eleven million gallons of crude coated 2,000 kilometres of Alaskan coast. Oil persists in the sediments decades later, and some species never recovered.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Exxon Valdez oil spill (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Exxon_Valdez_oil_spill"
    }
   ]
  },
  {
   "id": "kayapo-altamira",
   "year": 1989,
   "title": "The Kayapó gather at Altamira against the Xingu dams",
   "description": "Six hundred Indigenous people from dozens of nations assembled in the Amazon and, with international press present, forced the World Bank to withdraw funding. Indigenous refusal became a decisive force in planetary environmental politics.",
   "category": "movement",
   "frame": "sacred",
   "scale": "regional",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Altamira Gathering (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Altamira_Gathering"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "cfc-substitutes",
   "year": 1990,
   "title": "HCFCs and HFCs replace CFCs",
   "description": "The chemicals that saved the ozone layer turned out to be powerful greenhouse gases, some thousands of times more potent than carbon dioxide per unit mass. The Kigali Amendment was written to undo the fix.",
   "category": "technology",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Hydrofluorocarbon (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Hydrofluorocarbon"
    }
   ]
  },
  {
   "id": "ostrom-governing-commons",
   "year": 1990,
   "title": "Ostrom shows that commons can be governed",
   "description": "Governing the Commons documented irrigation systems, fisheries and pastures managed sustainably for centuries by their users, refuting Hardin's inevitability claim and identifying the design principles that make it work. Ostrom received the Nobel in economics in 2009.",
   "category": "idea",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Governing the Commons (Cambridge)",
     "url": "https://doi.org/10.1017/CBO9780511807763"
    }
   ]
  },
  {
   "id": "ipcc-far",
   "year": 1990,
   "title": "The IPCC First Assessment Report is published",
   "description": "The report concluded that emissions were substantially increasing greenhouse gas concentrations and would produce additional warming, while noting that detection was not yet unequivocal. It provided the basis for negotiating the climate convention.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IPCC First Assessment Report",
     "url": "https://www.ipcc.ch/report/climate-change-the-ipcc-1990-and-1992-assessments/"
    }
   ]
  },
  {
   "id": "pale-blue-dot",
   "year": 1990,
   "title": "Voyager 1 photographs the pale blue dot",
   "description": "At Carl Sagan's urging the spacecraft turned to photograph Earth from six billion kilometres, where it occupies less than a pixel. Sagan's commentary on the mote of dust suspended in a sunbeam became the definitive statement of planetary perspective.",
   "category": "culture",
   "frame": "wonder",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Pale Blue Dot (NASA)",
     "url": "https://science.nasa.gov/resource/pale-blue-dot-revisited/"
    }
   ]
  },
  {
   "id": "kuwait-oil-fires",
   "year": 1991,
   "title": "Retreating forces set the Kuwaiti oil fields alight",
   "description": "More than 600 wells burned for months, consuming several million barrels a day and blackening the sky across the Gulf. Deliberate environmental destruction as an act of war entered modern legal debate.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "westasia",
   "significance": "notable",
   "references": [
    {
     "title": "Kuwaiti oil fires (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Kuwaiti_oil_fires"
    }
   ]
  },
  {
   "id": "world-scientists-warning-1992",
   "year": 1992,
   "title": "1,700 scientists issue a Warning to Humanity",
   "description": "The Union of Concerned Scientists statement, signed by a majority of living Nobel laureates in the sciences, declared that a great change in stewardship was required to avoid vast human misery. It received almost no press coverage at the time.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "World Scientists' Warning to Humanity (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/World_Scientists%27_Warning_to_Humanity"
    }
   ]
  },
  {
   "id": "cbd-1992",
   "year": 1992,
   "title": "The Convention on Biological Diversity is opened for signature",
   "description": "The convention set three objectives: conservation, sustainable use, and equitable sharing of genetic benefits. The United States signed and never ratified.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Convention on Biological Diversity",
     "url": "https://www.cbd.int/convention/"
    }
   ]
  },
  {
   "id": "eu-habitats-directive",
   "year": 1992,
   "title": "The EU Habitats Directive creates the Natura 2000 network",
   "description": "Member states were obliged to designate and protect sites for listed habitats and species, producing the largest coordinated network of protected areas in the world, covering around 18 per cent of EU land.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Natura 2000 (European Commission)",
     "url": "https://environment.ec.europa.eu/topics/nature-and-biodiversity/natura-2000_en"
    }
   ]
  },
  {
   "id": "rio-earth-summit",
   "year": 1992,
   "title": "The Rio Earth Summit convenes 178 states",
   "description": "The largest gathering of heads of state to that date produced the Rio Declaration, Agenda 21, the Forest Principles, and opened two conventions for signature. It established common but differentiated responsibilities and the precautionary approach as principles of international environmental law.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Rio Declaration (UN)",
     "url": "https://www.un.org/en/conferences/environment/rio1992"
    }
   ],
   "milestone": true
  },
  {
   "id": "unfccc-1992",
   "year": 1992,
   "title": "The UN Framework Convention on Climate Change is opened for signature",
   "description": "Parties committed to prevent dangerous anthropogenic interference with the climate system, without defining dangerous or setting binding targets. It created the annual Conference of the Parties that has met every year since.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "UNFCCC",
     "url": "https://unfccc.int/process-and-meetings/the-convention/what-is-the-united-nations-framework-convention-on-climate-change"
    }
   ]
  },
  {
   "id": "newfoundland-cod",
   "year": 1992,
   "title": "The northern cod fishery collapses and is closed",
   "description": "Canada shut a fishery that had been worked for five centuries after stocks fell to about one per cent of historical biomass, ending 35,000 jobs overnight. Three decades on, the stock has not recovered.",
   "category": "disaster",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Collapse of the Atlantic northwest cod fishery (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Collapse_of_the_Atlantic_northwest_cod_fishery"
    }
   ]
  },
  {
   "id": "shiva-monocultures",
   "year": 1993,
   "title": "Vandana Shiva names monocultures of the mind",
   "description": "Shiva argued that the erasure of agricultural and knowledge diversity by industrial agriculture was epistemic as well as ecological, and that alternatives were rendered invisible rather than defeated.",
   "category": "idea",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "southasia",
   "significance": "notable",
   "references": [
    {
     "title": "Monocultures of the Mind",
     "url": "https://www.bloomsbury.com/uk/monocultures-of-the-mind-9781856491600/"
    }
   ]
  },
  {
   "id": "desertification-convention",
   "year": 1994,
   "title": "The UN Convention to Combat Desertification is adopted",
   "description": "The third Rio convention addressed land degradation in drylands, the issue most pressed by African states and the least funded of the three. Land remains the poor relation of climate and biodiversity.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "africa",
   "significance": "notable",
   "references": [
    {
     "title": "UNCCD",
     "url": "https://www.unccd.int/"
    }
   ]
  },
  {
   "id": "crutzen-nobel",
   "year": 1995,
   "title": "Crutzen, Molina and Rowland receive the Nobel Prize for ozone chemistry",
   "description": "The award recognised work that had identified a planetary threat, been attacked by industry, and then been vindicated and acted upon. It is the clearest case of the warning-to-treaty pathway functioning.",
   "category": "observation",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Nobel Prize in Chemistry 1995",
     "url": "https://www.nobelprize.org/prizes/chemistry/1995/summary/"
    }
   ]
  },
  {
   "id": "ogallala-depletion",
   "year": 1995,
   "title": "Groundwater depletion is documented across the High Plains",
   "description": "Systematic surveys showed the Ogallala aquifer falling by tens of metres in places, water banked over millennia withdrawn within a lifetime. Aquifer decline became a global template for invisible depletion.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "High Plains aquifer (USGS)",
     "url": "https://www.usgs.gov/mission-areas/water-resources/science/high-plains-aquifer-groundwater-availability"
    }
   ]
  },
  {
   "id": "ogoni-saro-wiwa",
   "year": 1995,
   "title": "Ken Saro-Wiwa is executed after the Ogoni campaign",
   "description": "The movement against Shell's pollution of the Niger Delta ended with the hanging of nine of its leaders by the Nigerian military government. It is the starkest demonstration that environmental defence can be lethal.",
   "category": "movement",
   "frame": "loss",
   "scale": "regional",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "africa",
   "significance": "major",
   "references": [
    {
     "title": "Ken Saro-Wiwa (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Ken_Saro-Wiwa"
    }
   ],
   "milestone": true
  },
  {
   "id": "ccs-sleipner",
   "year": 1996,
   "title": "Sleipner begins storing carbon dioxide under the North Sea",
   "description": "The first commercial-scale geological storage project injected around a million tonnes a year into a saline aquifer, and it has held. Three decades later, global capture capacity remains around a thousandth of annual emissions.",
   "category": "technology",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Sleipner CO2 storage (Equinor)",
     "url": "https://www.equinor.com/energy/sleipner-partnership-co2-storage"
    },
    {
     "title": "Global CCS Institute status report",
     "url": "https://status23.globalccsinstitute.com/"
    }
   ]
  },
  {
   "id": "kyoto-carbon-markets",
   "year": 1997,
   "title": "Carbon offsetting is written into international law",
   "description": "The Clean Development Mechanism let industrialised countries meet targets by funding reductions elsewhere. Later reviews found that a large majority of assessed CDM projects were unlikely to be additional.",
   "category": "technology",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Cames et al. 2016, How additional is the CDM?",
     "url": "https://climate.ec.europa.eu/system/files/2017-04/clean_dev_mechanism_en.pdf"
    }
   ]
  },
  {
   "id": "kyoto-protocol",
   "year": 1997,
   "title": "The Kyoto Protocol sets binding emissions targets",
   "description": "Industrialised parties accepted quantified reduction commitments averaging about five per cent below 1990 levels. The United States never ratified, Canada withdrew, and global emissions rose by roughly 60 per cent over the period it covered.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Kyoto Protocol (UNFCCC)",
     "url": "https://unfccc.int/kyoto_protocol"
    }
   ]
  },
  {
   "id": "pauly-fishing-down",
   "year": 1998,
   "title": "Pauly shows fisheries are fishing down the food web",
   "description": "Catch statistics revealed that fleets were progressively taking smaller, lower-trophic species as the large predators were removed, while total landings appeared stable. Pauly had earlier named the shifting baseline syndrome that hid the decline.",
   "category": "observation",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Pauly et al. 1998, Science",
     "url": "https://doi.org/10.1126/science.279.5352.860"
    }
   ]
  },
  {
   "id": "aarhus-convention",
   "year": 1998,
   "title": "The Aarhus Convention grants environmental rights of access",
   "description": "The convention gave the public rights to environmental information, participation in decisions and access to justice. It is the strongest procedural environmental rights instrument in force.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Aarhus Convention (UNECE)",
     "url": "https://unece.org/environment-policy/public-participation/aarhus-convention/text"
    }
   ]
  },
  {
   "id": "anthropocene-coined",
   "year": 2000,
   "title": "Crutzen and Stoermer propose the Anthropocene",
   "description": "Paul Crutzen interrupted a conference to say that we are no longer in the Holocene, and with Eugene Stoermer published the term in the IGBP newsletter. A word for the present as a geological condition entered general use within a decade.",
   "category": "idea",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Crutzen & Stoermer 2000, IGBP Newsletter 41",
     "url": "http://www.igbp.net/download/18.316f18321323470177580001401/1376383088452/NL41.pdf"
    }
   ],
   "milestone": true
  },
  {
   "id": "stockholm-convention-pops",
   "year": 2001,
   "title": "The Stockholm Convention bans persistent organic pollutants",
   "description": "Parties agreed to eliminate or restrict an initial dirty dozen of persistent, bioaccumulative chemicals, including DDT and PCBs. Carson's argument became binding international law thirty-nine years after her book.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Stockholm Convention",
     "url": "http://www.pops.int/"
    }
   ]
  },
  {
   "id": "ocean-acidification-2003",
   "year": 2003,
   "title": "Ocean acidification is named",
   "description": "Caldeira and Wickett showed that the ocean's absorption of carbon dioxide was lowering its pH faster than at any time in tens of millions of years. The other carbon dioxide problem entered the literature.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Caldeira & Wickett 2003, Nature",
     "url": "https://doi.org/10.1038/425365a"
    }
   ]
  },
  {
   "id": "attribution-science",
   "year": 2004,
   "title": "Event attribution becomes possible",
   "description": "Stott, Stone and Allen showed that the 2003 European heatwave, which killed tens of thousands, had been made at least twice as likely by human influence. Climate change acquired a forensic method.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Stott et al. 2004, Nature",
     "url": "https://doi.org/10.1038/nature03089"
    }
   ]
  },
  {
   "id": "great-acceleration",
   "year": 2004,
   "title": "The Great Acceleration curves are published",
   "description": "IGBP's synthesis plotted twenty-four socio-economic and Earth system indicators from 1750, and nearly all bent sharply upward around 1950. It is the most compact evidence that the planetary condition changed within living memory.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Steffen et al. 2015, The Anthropocene Review",
     "url": "https://doi.org/10.1177/2053019614564785"
    }
   ],
   "milestone": true
  },
  {
   "id": "microplastics-named",
   "year": 2004,
   "title": "Thompson names microplastics",
   "description": "Richard Thompson's team documented microscopic plastic fragments accumulating in sediments and seawater, and asked where all the plastic had gone. They have since been found in placentas, blood and rain.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Thompson et al. 2004, Science",
     "url": "https://doi.org/10.1126/science.1094559"
    }
   ]
  },
  {
   "id": "millennium-ecosystem-assessment",
   "year": 2005,
   "title": "The Millennium Ecosystem Assessment audits the world's ecosystems",
   "description": "More than 1,300 experts found that around 60 per cent of ecosystem services examined were being degraded or used unsustainably. It introduced ecosystem services to policy and, in doing so, made nature legible as an economic asset.",
   "category": "observation",
   "frame": "loss",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Millennium Ecosystem Assessment",
     "url": "https://www.millenniumassessment.org/en/Synthesis.html"
    }
   ]
  },
  {
   "id": "inconvenient-truth",
   "year": 2006,
   "title": "An Inconvenient Truth reaches a mass audience",
   "description": "Al Gore's film took climate science into cinemas worldwide and won an Academy Award, and it also bound the issue tightly to one politician in a polarised country. Public understanding rose and partisan division deepened together.",
   "category": "culture",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "An Inconvenient Truth (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/An_Inconvenient_Truth"
    }
   ]
  },
  {
   "id": "stern-review",
   "year": 2006,
   "title": "The Stern Review prices climate inaction",
   "description": "Nicholas Stern concluded that unmitigated climate change would cost at least 5 per cent of global GDP annually against roughly 1 per cent to act, and called it the greatest market failure the world has seen. Climate entered treasury departments.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Stern Review (UK National Archives)",
     "url": "https://webarchive.nationalarchives.gov.uk/ukgwa/20100407172811/http://www.hm-treasury.gov.uk/stern_review_report.htm"
    }
   ]
  },
  {
   "id": "urban-majority-2007",
   "year": 2007,
   "title": "Humanity becomes a majority urban species",
   "description": "For the first time more people lived in cities than outside them, a threshold crossed quietly and with no single date that can be verified precisely. The everyday experience of most humans became one of built environment.",
   "category": "observation",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "UN World Urbanization Prospects",
     "url": "https://population.un.org/wup/"
    }
   ]
  },
  {
   "id": "redd-plus",
   "year": 2007,
   "title": "REDD+ makes standing forests a tradable asset",
   "description": "Agreed at COP13 in Bali, the mechanism pays developing countries to avoid deforestation. Evaluations of voluntary projects have repeatedly found overstated baselines, and some have been withdrawn entirely.",
   "category": "technology",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "REDD+ (UNFCCC)",
     "url": "https://unfccc.int/topics/land-use/workstreams/redd"
    },
    {
     "title": "West et al. 2023, Science",
     "url": "https://doi.org/10.1126/science.ade3535"
    }
   ]
  },
  {
   "id": "ipcc-ar4-nobel",
   "year": 2007,
   "title": "The IPCC and Gore share the Nobel Peace Prize",
   "description": "The Fourth Assessment Report declared warming unequivocal, and the prize recognised the effort to build and disseminate knowledge about man-made climate change. It marked the high-water mark of climate consensus politics before the financial crisis.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Nobel Peace Prize 2007",
     "url": "https://www.nobelprize.org/prizes/peace/2007/summary/"
    }
   ]
  },
  {
   "id": "degrowth",
   "year": 2008,
   "title": "Degrowth becomes an organised research programme",
   "description": "The first international degrowth conference in Paris consolidated a movement arguing for planned reduction of material throughput in wealthy economies. It remains marginal in policy and persistent in the literature.",
   "category": "idea",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Degrowth (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Degrowth"
    }
   ]
  },
  {
   "id": "ecuador-rights-of-nature",
   "year": 2008,
   "title": "Ecuador writes rights of nature into its constitution",
   "description": "Article 71 recognised Pachamama's right to exist, persist and regenerate, allowing any person to bring suit on nature's behalf. It is the first national constitution to grant nature enforceable rights.",
   "category": "law",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Rights of nature (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Rights_of_nature"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "tipping-elements",
   "year": 2008,
   "title": "Lenton and colleagues map Earth's tipping elements",
   "description": "The paper identified nine large-scale components of the Earth system, from the Greenland ice sheet to the Amazon, that could pass thresholds into qualitatively different states. It made abrupt, irreversible change a central category in climate science.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Lenton et al. 2008, PNAS",
     "url": "https://doi.org/10.1073/pnas.0705414105"
    }
   ]
  },
  {
   "id": "copenhagen-cop15",
   "year": 2009,
   "title": "COP15 in Copenhagen fails to produce a binding agreement",
   "description": "A summit built up as the moment of decision ended in a non-binding accord negotiated among a handful of states. The collapse damaged confidence in multilateral climate diplomacy for years and produced the 100 billion dollar finance pledge.",
   "category": "institution",
   "frame": "loss",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Copenhagen Accord (UNFCCC)",
     "url": "https://unfccc.int/process/conferences/pastconferences/copenhagen-climate-change-conference-december-2009"
    }
   ]
  },
  {
   "id": "chakrabarty-climate-of-history",
   "year": 2009,
   "title": "Chakrabarty collapses human and natural history",
   "description": "The Climate of History argued that humans, having become a geological force, can no longer treat natural history as the stage for human history. We act as a species in deep time while living, and quarrelling, as unequal peoples in historical time.",
   "category": "idea",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Chakrabarty 2009, Critical Inquiry",
     "url": "https://doi.org/10.1086/596640"
    }
   ]
  },
  {
   "id": "planetary-boundaries-2009",
   "year": 2009,
   "title": "Rockstrom and colleagues define planetary boundaries",
   "description": "Nine processes were identified that regulate the stability of the Earth system, with quantified boundaries defining a safe operating space for humanity. Three were assessed as already crossed. It is the most influential framework in Earth system science.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Rockstrom et al. 2009, Nature",
     "url": "https://doi.org/10.1038/461472a"
    }
   ],
   "milestone": true
  },
  {
   "id": "geoengineering-royal-society",
   "year": 2009,
   "title": "The Royal Society assesses geoengineering",
   "description": "The report concluded that solar radiation management could cool the planet quickly and cheaply but addressed no underlying cause, carried large uncertainties, and raised governance problems with no precedent. Serious discussion of deliberate climate intervention entered the mainstream.",
   "category": "technology",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Geoengineering the climate (Royal Society)",
     "url": "https://royalsociety.org/topics-policy/publications/2009/geoengineering-climate/"
    }
   ]
  },
  {
   "id": "deepwater-horizon",
   "year": 2010,
   "title": "Deepwater Horizon blows out in the Gulf of Mexico",
   "description": "Eleven workers died and around 780 million litres of oil escaped over 87 days, the largest marine spill in history. It occurred as offshore drilling pushed into ever deeper water.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Deepwater Horizon oil spill (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Deepwater_Horizon_oil_spill"
    }
   ]
  },
  {
   "id": "merchants-of-doubt",
   "year": 2010,
   "title": "Oreskes and Conway trace the manufacture of doubt",
   "description": "The book documented how the same handful of scientists and think tanks moved from tobacco to acid rain to ozone to climate, using uncertainty itself as the product. Organised denial became a documented object of study.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Merchants of Doubt (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Merchants_of_Doubt"
    }
   ]
  },
  {
   "id": "solar-cost-collapse",
   "year": 2010,
   "title": "Solar photovoltaic costs begin an order-of-magnitude fall",
   "description": "Module prices fell roughly 90 per cent over the following decade, faster than almost every published forecast, making solar the cheapest electricity in most of the world. Fossil fuel consumption nonetheless kept rising: the transition has so far been addition rather than substitution.",
   "category": "technology",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Our World in Data — solar costs",
     "url": "https://ourworldindata.org/learning-curve"
    },
    {
     "title": "IEA World Energy Outlook",
     "url": "https://www.iea.org/reports/world-energy-outlook-2025"
    }
   ]
  },
  {
   "id": "aichi-targets",
   "year": 2010,
   "title": "The Aichi Biodiversity Targets are adopted",
   "description": "Parties to the CBD agreed twenty targets to be met by 2020, covering habitat loss, overfishing, protected areas and awareness. When the deadline arrived, not one had been fully achieved.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Aichi Biodiversity Targets (CBD)",
     "url": "https://www.cbd.int/sp/targets/"
    }
   ]
  },
  {
   "id": "fukushima",
   "year": 2011,
   "title": "The Fukushima Daiichi accident follows the Tohoku tsunami",
   "description": "Three reactor meltdowns after a magnitude 9.0 earthquake and tsunami led to mass evacuation and prompted Germany to abandon nuclear power. Global nuclear generation, a large low-carbon source, fell for a decade afterwards.",
   "category": "disaster",
   "frame": "threat",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "eastasia",
   "significance": "major",
   "references": [
    {
     "title": "Fukushima nuclear accident (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Fukushima_nuclear_accident"
    }
   ]
  },
  {
   "id": "rio-plus-20",
   "year": 2012,
   "title": "Rio+20 produces The Future We Want",
   "description": "Twenty years after the Earth Summit, states reaffirmed commitments and launched the process that became the Sustainable Development Goals. Critics noted the outcome document contained almost no new obligations.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "The Future We Want (UN)",
     "url": "https://sustainabledevelopment.un.org/futurewewant.html"
    }
   ]
  },
  {
   "id": "mauna-loa-400",
   "year": 2013,
   "title": "Atmospheric carbon dioxide passes 400 parts per million",
   "description": "The daily mean at Mauna Loa crossed a threshold last seen in the Pliocene, several million years ago, when sea level stood metres higher. It has not returned below since.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Scripps CO2 Program",
     "url": "https://keelingcurve.ucsd.edu/"
    }
   ]
  },
  {
   "id": "kimmerer-braiding",
   "year": 2013,
   "title": "Braiding Sweetgrass joins Indigenous knowledge and botany",
   "description": "Robin Wall Kimmerer set Potawatomi teachings of reciprocity alongside plant science, arguing that gratitude and obligation are as necessary as measurement. It reached a very large readership over the following decade.",
   "category": "idea",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Braiding Sweetgrass (Milkweed)",
     "url": "https://milkweed.org/book/braiding-sweetgrass"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "minamata-convention",
   "year": 2013,
   "title": "The Minamata Convention restricts mercury",
   "description": "Named for the bay poisoned six decades earlier, the treaty controls mercury across its life cycle. The interval between the harm and the global instrument was fifty-seven years.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "promise",
   "region": "eastasia",
   "significance": "notable",
   "references": [
    {
     "title": "Minamata Convention",
     "url": "https://www.mercuryconvention.org/"
    }
   ]
  },
  {
   "id": "malm-hornborg-geology-of-mankind",
   "year": 2014,
   "title": "Malm and Hornborg ask who the Anthropos is",
   "description": "The Geology of Mankind? argued that steam power was adopted by a particular class in a particular place for profit and labour discipline, not by the species. Naming the epoch after humanity, they said, spreads blame over people who bear none of it.",
   "category": "idea",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Malm & Hornborg 2014, The Anthropocene Review",
     "url": "https://doi.org/10.1177/2053019613516291"
    }
   ]
  },
  {
   "id": "exxon-knew",
   "year": 2015,
   "title": "Exxon's own climate projections are made public",
   "description": "Investigative reporting, later confirmed by peer-reviewed analysis of the company's internal documents, showed Exxon scientists had accurately projected warming from the late 1970s while the company funded doubt. The gap between private knowledge and public argument was documented.",
   "category": "warning",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Supran, Rahmstorf & Oreskes 2023, Science",
     "url": "https://doi.org/10.1126/science.abk0063"
    }
   ]
  },
  {
   "id": "laudato-si",
   "year": 2015,
   "title": "Laudato si' addresses ecology from the papacy",
   "description": "Francis framed environmental degradation and poverty as a single crisis, criticised technocratic and market solutions, and called for an integral ecology. It reached an audience no scientific report could.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Laudato si' (Vatican)",
     "url": "https://www.vatican.va/content/francesco/en/encyclicals/documents/papa-francesco_20150524_enciclica-laudato-si.html"
    }
   ]
  },
  {
   "id": "paris-agreement",
   "year": 2015,
   "title": "The Paris Agreement sets a temperature goal without binding targets",
   "description": "196 parties agreed to hold warming well below 2 degrees and pursue efforts to limit it to 1.5, through nationally determined contributions that each state sets for itself. Universality was bought with the loss of enforceability.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Paris Agreement (UNFCCC)",
     "url": "https://unfccc.int/process-and-meetings/the-paris-agreement"
    }
   ],
   "milestone": true
  },
  {
   "id": "sdgs-2015",
   "year": 2015,
   "title": "The Sustainable Development Goals are adopted",
   "description": "Seventeen goals and 169 targets replaced the Millennium Development Goals with a universal agenda to 2030. Critics argued that the goals assume growth and environmental restoration are compatible and avoid naming the trade-offs.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Sustainable Development Goals (UN)",
     "url": "https://sdgs.un.org/goals"
    }
   ]
  },
  {
   "id": "urgenda-ruling",
   "year": 2015,
   "title": "The Urgenda ruling orders a state to cut emissions",
   "description": "A Dutch court held that the Netherlands owed its citizens a duty of care requiring deeper emissions cuts, and the Supreme Court upheld it in 2019. It opened the era of climate litigation against governments.",
   "category": "law",
   "frame": "care",
   "scale": "national",
   "mode": "reaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Urgenda v. Netherlands (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/State_of_the_Netherlands_v._Urgenda_Foundation"
    }
   ]
  },
  {
   "id": "planetary-boundaries-2015",
   "year": 2015,
   "title": "The planetary boundaries framework is updated to four crossed",
   "description": "Steffen and colleagues revised the framework, adding a two-tier structure and identifying climate change and biosphere integrity as core boundaries. Four of nine were now assessed as transgressed.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Steffen et al. 2015, Science",
     "url": "https://doi.org/10.1126/science.1259855"
    }
   ]
  },
  {
   "id": "standing-rock",
   "year": 2016,
   "title": "Standing Rock opposes the Dakota Access Pipeline",
   "description": "The largest gathering of Native American nations in over a century assembled against a pipeline crossing under the Missouri River. Water protectors framed the dispute as a matter of treaty rights and sacred obligation, not only of risk.",
   "category": "movement",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Dakota Access Pipeline protests (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Dakota_Access_Pipeline_protests"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "kigali-amendment",
   "year": 2016,
   "title": "The Kigali Amendment adds HFCs to the Montreal Protocol",
   "description": "Parties agreed to phase down hydrofluorocarbons, potent greenhouse gases introduced as ozone-safe replacements. The treaty that fixed one problem was used to fix the problem its own solution had created.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "africa",
   "significance": "notable",
   "references": [
    {
     "title": "Kigali Amendment (UNEP)",
     "url": "https://www.unep.org/ozonaction/who-we-are/about-montreal-protocol"
    }
   ]
  },
  {
   "id": "blue-planet-ii",
   "year": 2017,
   "title": "Blue Planet II makes ocean plastic a public issue",
   "description": "The series ended with albatross chicks fed plastic, and within months governments across Europe announced single-use plastic measures. It is one of the clearest documented cases of a broadcast changing policy.",
   "category": "culture",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Blue Planet II (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Blue_Planet_II"
    }
   ]
  },
  {
   "id": "insect-decline-2017",
   "year": 2017,
   "title": "Long-term monitoring finds a 75 per cent decline in flying insect biomass",
   "description": "Malaise trap data from German protected areas over 27 years showed a collapse in insect biomass. The finding brought the phrase insect apocalypse into circulation and exposed how little baseline monitoring exists.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Hallmann et al. 2017, PLOS ONE",
     "url": "https://doi.org/10.1371/journal.pone.0185809"
    }
   ]
  },
  {
   "id": "doughnut-economics",
   "year": 2017,
   "title": "Raworth draws the doughnut",
   "description": "Kate Raworth combined the planetary boundaries with a social foundation of human needs, defining a safe and just space between them. The diagram has been adopted by cities including Amsterdam as a policy frame.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Doughnut Economics (DEAL)",
     "url": "https://doughnuteconomics.org/"
    }
   ]
  },
  {
   "id": "whanganui-legal-person",
   "year": 2017,
   "title": "The Whanganui River is granted legal personhood",
   "description": "Te Awa Tupua legislation recognised the river as an indivisible living whole with the rights of a legal person, following 140 years of claims by Whanganui iwi. Rights of nature moved from theory into statute.",
   "category": "law",
   "frame": "sacred",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "oceania",
   "significance": "major",
   "references": [
    {
     "title": "Te Awa Tupua Act 2017",
     "url": "https://www.legislation.govt.nz/act/public/2017/0007/latest/whole.html"
    }
   ],
   "milestone": true,
   "themes": [
    "indigenous"
   ]
  },
  {
   "id": "escobar-pluriverse",
   "year": 2018,
   "title": "Escobar argues for the pluriverse",
   "description": "Designs for the Pluriverse held that the modern insistence on a single world, knowable and improvable, is itself the problem, and that many worlds coexist. It became a central reference for decolonial environmental thought.",
   "category": "idea",
   "frame": "sacred",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Designs for the Pluriverse (Duke UP)",
     "url": "https://www.dukeupress.edu/designs-for-the-pluriverse"
    }
   ]
  },
  {
   "id": "extinction-rebellion",
   "year": 2018,
   "title": "Extinction Rebellion adopts mass civil disobedience",
   "description": "Blockades of central London put arrest-based tactics back into environmental politics, and the UK Parliament declared a climate emergency months later. The movement also drew sustained criticism over policing risk for people of colour.",
   "category": "movement",
   "frame": "threat",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Extinction Rebellion (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/Extinction_Rebellion"
    }
   ]
  },
  {
   "id": "thunberg-school-strike",
   "year": 2018,
   "title": "Greta Thunberg begins the school strike for climate",
   "description": "A solitary protest outside the Swedish parliament grew into a movement that mobilised millions in over 150 countries within a year. Its central demand was that governments act as if the science they had already endorsed were true.",
   "category": "movement",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "School strike for climate (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/School_Strike_for_Climate"
    }
   ],
   "milestone": true
  },
  {
   "id": "hothouse-earth",
   "year": 2018,
   "title": "Steffen and colleagues describe a Hothouse Earth pathway",
   "description": "The paper argued that crossing a threshold near 2 degrees could trigger cascading feedbacks that carry the Earth system to a much hotter state regardless of subsequent emissions. It brought cascade and irreversibility into mainstream climate discussion.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Steffen et al. 2018, PNAS",
     "url": "https://doi.org/10.1073/pnas.1810141115"
    }
   ]
  },
  {
   "id": "escazu-agreement",
   "year": 2018,
   "title": "The Escazu Agreement protects environmental defenders",
   "description": "The first treaty anywhere to include binding provisions on the protection of environmental human rights defenders, adopted in a region where more of them are killed than anywhere else.",
   "category": "law",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "Escazu Agreement (ECLAC)",
     "url": "https://www.cepal.org/en/escazuagreement"
    }
   ]
  },
  {
   "id": "ipcc-sr15",
   "year": 2018,
   "title": "The IPCC Special Report on 1.5 degrees sets a deadline",
   "description": "The report found that limiting warming to 1.5 degrees required global emissions to fall by about 45 per cent by 2030 and reach net zero by mid-century. The number twelve years entered public discourse and drove a wave of mobilisation.",
   "category": "warning",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IPCC Special Report on Global Warming of 1.5C",
     "url": "https://www.ipcc.ch/sr15/"
    }
   ]
  },
  {
   "id": "black-summer",
   "year": 2019,
   "title": "Australia's Black Summer burns 24 million hectares",
   "description": "Fires killed or displaced an estimated three billion animals and pushed smoke around the southern hemisphere. Attribution studies found climate change had made the conditions at least 30 per cent more likely.",
   "category": "disaster",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "oceania",
   "significance": "major",
   "references": [
    {
     "title": "2019-20 Australian bushfires (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/2019%E2%80%9320_Australian_bushfire_season"
    },
    {
     "title": "van Oldenborgh et al. 2021, NHESS",
     "url": "https://doi.org/10.5194/nhess-21-941-2021"
    }
   ]
  },
  {
   "id": "ipbes-global-assessment",
   "year": 2019,
   "title": "IPBES finds a million species threatened with extinction",
   "description": "The first global biodiversity assessment since the Millennium Ecosystem Assessment, drawing on 15,000 sources, concluded that around one million animal and plant species face extinction, many within decades, and that transformative change is required.",
   "category": "observation",
   "frame": "loss",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IPBES Global Assessment",
     "url": "https://www.ipbes.net/global-assessment"
    }
   ],
   "milestone": true
  },
  {
   "id": "anthropomass-2020",
   "year": 2020,
   "title": "Human-made mass exceeds all living biomass",
   "description": "Weizmann Institute researchers estimated that the mass of buildings, roads, machines and plastics passed the total dry weight of living things around 2020, doubling every twenty years. Concrete alone outweighs all trees and shrubs.",
   "category": "observation",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "westasia",
   "significance": "major",
   "references": [
    {
     "title": "Elhacham et al. 2020, Nature",
     "url": "https://doi.org/10.1038/s41586-020-3010-5"
    }
   ]
  },
  {
   "id": "aichi-failure-2020",
   "year": 2020,
   "title": "None of the twenty Aichi targets is fully met",
   "description": "The CBD's Global Biodiversity Outlook 5 reported partial progress on six targets and full achievement of none. A decade of agreed global biodiversity policy delivered no target in full.",
   "category": "warning",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Global Biodiversity Outlook 5 (CBD)",
     "url": "https://www.cbd.int/gbo5"
    }
   ]
  },
  {
   "id": "ipcc-ar6-unequivocal",
   "year": 2021,
   "title": "AR6 calls human influence on the climate unequivocal",
   "description": "The Sixth Assessment dropped the hedging of earlier reports, stating flatly that it is unequivocal that human influence has warmed the atmosphere, ocean and land. Thirty-one years after the First Assessment, the qualifier was gone.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IPCC AR6 WGI Summary for Policymakers",
     "url": "https://www.ipcc.ch/report/ar6/wg1/"
    }
   ]
  },
  {
   "id": "direct-air-capture",
   "year": 2021,
   "title": "Orca begins direct air capture in Iceland",
   "description": "The largest plant of its kind captured around 4,000 tonnes of carbon dioxide a year — roughly three seconds of global emissions. Direct air capture is real, and its scale problem is arithmetic rather than engineering.",
   "category": "technology",
   "frame": "care",
   "scale": "international",
   "mode": "proaction",
   "stance": "promise",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Climeworks Orca",
     "url": "https://climeworks.com/plant-orca"
    }
   ]
  },
  {
   "id": "amazon-carbon-source",
   "year": 2021,
   "title": "Parts of the Amazon are measured emitting more carbon than they absorb",
   "description": "Nine years of aircraft profiles found the south-eastern Amazon had become a net carbon source, driven by deforestation, fire and drought. A system long counted as a sink was found working the other way.",
   "category": "observation",
   "frame": "loss",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "Gatti et al. 2021, Nature",
     "url": "https://doi.org/10.1038/s41586-021-03629-6"
    }
   ]
  },
  {
   "id": "dasgupta-review",
   "year": 2021,
   "title": "The Dasgupta Review treats the economy as embedded in nature",
   "description": "Commissioned by the UK Treasury, Partha Dasgupta argued that economics has treated nature as external and that humanity's demands exceed the biosphere's capacity to supply. It is the first treasury-commissioned economics of biodiversity.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "The Economics of Biodiversity: The Dasgupta Review",
     "url": "https://www.gov.uk/government/publications/final-report-the-economics-of-biodiversity-the-dasgupta-review"
    }
   ]
  },
  {
   "id": "lytton-heat-dome",
   "year": 2021,
   "title": "The Pacific Northwest heat dome breaks records by degrees",
   "description": "Lytton, British Columbia reached 49.6 degrees, beating the national record by nearly five degrees, and burned the following day. Rapid attribution found the event virtually impossible without climate change.",
   "category": "disaster",
   "frame": "threat",
   "scale": "regional",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "americas",
   "significance": "major",
   "references": [
    {
     "title": "2021 Western North America heat wave (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/2021_Western_North_America_heat_wave"
    }
   ]
  },
  {
   "id": "cop27-loss-damage",
   "year": 2022,
   "title": "COP27 agrees a loss and damage fund",
   "description": "After thirty years of refusal, wealthy states accepted a dedicated fund for countries suffering climate harms they did not cause. The principle was conceded; the sums pledged remain a small fraction of assessed need.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "promise",
   "region": "africa",
   "significance": "major",
   "references": [
    {
     "title": "COP27 loss and damage fund (UNFCCC)",
     "url": "https://unfccc.int/cop27"
    }
   ]
  },
  {
   "id": "pakistan-floods-2022",
   "year": 2022,
   "title": "Floods put a third of Pakistan under water",
   "description": "Monsoon rain and glacial melt displaced 33 million people in a country responsible for well under one per cent of historical emissions. The disaster drove the loss and damage fund agreed at COP27 months later.",
   "category": "disaster",
   "frame": "loss",
   "scale": "national",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "southasia",
   "significance": "major",
   "references": [
    {
     "title": "2022 Pakistan floods (Wikipedia)",
     "url": "https://en.wikipedia.org/wiki/2022_Pakistan_floods"
    }
   ]
  },
  {
   "id": "freshwater-boundary-2022",
   "year": 2022,
   "title": "Green water is added to the freshwater boundary, and it is transgressed",
   "description": "Wang-Erlandsson and colleagues reframed the freshwater boundary to include soil moisture, and found it already exceeded. Water in the land surface, invisible to conventional accounting, entered the framework.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Wang-Erlandsson et al. 2022, Nature Reviews EE",
     "url": "https://doi.org/10.1038/s43017-022-00287-8"
    }
   ]
  },
  {
   "id": "plastics-treaty-inc",
   "year": 2022,
   "title": "Negotiations open on a global plastics treaty",
   "description": "UNEA agreed to negotiate a legally binding instrument covering the full life cycle of plastic. Successive sessions have deadlocked over whether to cap production, the question the treaty exists to answer.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Plastics treaty negotiations (UNEP)",
     "url": "https://www.unep.org/inc-plastic-pollution"
    }
   ]
  },
  {
   "id": "stockholm-plus-50",
   "year": 2022,
   "title": "Stockholm+50 marks half a century of environmental diplomacy",
   "description": "Fifty years after the founding conference, states met again in Stockholm and issued recommendations without binding commitments. Emissions, extinction rates and material throughput had all risen substantially across the intervening five decades.",
   "category": "institution",
   "frame": "loss",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "notable",
   "references": [
    {
     "title": "Stockholm+50 (UNEP)",
     "url": "https://www.unep.org/events/conference/stockholm50"
    }
   ]
  },
  {
   "id": "kunming-montreal-gbf",
   "year": 2022,
   "title": "The Kunming-Montreal Global Biodiversity Framework adopts 30x30",
   "description": "Parties agreed to protect 30 per cent of land and sea by 2030 and to restore 30 per cent of degraded ecosystems, replacing the failed Aichi targets. The framework has stronger monitoring provisions and no enforcement.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Kunming-Montreal GBF (CBD)",
     "url": "https://www.cbd.int/gbf/"
    }
   ]
  },
  {
   "id": "fusion-ignition",
   "year": 2022,
   "title": "The National Ignition Facility achieves fusion ignition",
   "description": "For the first time a fusion reaction released more energy than the laser energy delivered to the target, a genuine scientific milestone. The facility consumed far more grid power than the shot produced, and commercial fusion remains distant.",
   "category": "technology",
   "frame": "wonder",
   "scale": "national",
   "mode": "proaction",
   "stance": "promise",
   "region": "americas",
   "significance": "notable",
   "references": [
    {
     "title": "LLNL ignition announcement",
     "url": "https://www.llnl.gov/article/49301/lawrence-livermore-national-laboratory-achieves-fusion-ignition"
    }
   ]
  },
  {
   "id": "novel-entities-2022",
   "year": 2022,
   "title": "The novel entities boundary is assessed as crossed",
   "description": "Persson and colleagues concluded that humanity has exceeded a safe operating space for synthetic chemicals and plastics, because production vastly outpaces the capacity to assess or monitor them. A fifth boundary fell.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "major",
   "references": [
    {
     "title": "Persson et al. 2022, ES&T",
     "url": "https://doi.org/10.1021/acs.est.1c04158"
    }
   ]
  },
  {
   "id": "cop28-transition-away",
   "year": 2023,
   "title": "COP28 names fossil fuels in a decision text",
   "description": "The first global stocktake called on parties to transition away from fossil fuels in energy systems. Twenty-eight annual conferences passed before the cause of the problem was named in an agreed text.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "westasia",
   "significance": "major",
   "references": [
    {
     "title": "COP28 Global Stocktake (UNFCCC)",
     "url": "https://unfccc.int/cop28/outcomes"
    }
   ]
  },
  {
   "id": "boundaries-2023",
   "year": 2023,
   "title": "Six of nine planetary boundaries are assessed as crossed",
   "description": "Richardson and colleagues published the first quantification of all nine boundaries, finding six transgressed. The framework moved from a conceptual proposal to a complete planetary diagnosis.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Richardson et al. 2023, Science Advances",
     "url": "https://doi.org/10.1126/sciadv.adh2458"
    }
   ]
  },
  {
   "id": "safe-just-boundaries",
   "year": 2023,
   "title": "The Earth Commission defines safe and just Earth system boundaries",
   "description": "Rockstrom and colleagues added justice criteria to the boundaries, finding that most safe and just limits are already breached and that meeting them requires attention to who bears the harm.",
   "category": "idea",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Rockstrom et al. 2023, Nature",
     "url": "https://doi.org/10.1038/s41586-023-06083-8"
    }
   ]
  },
  {
   "id": "high-seas-treaty",
   "year": 2023,
   "title": "The High Seas Treaty covers two-thirds of the ocean",
   "description": "After nearly twenty years of negotiation, states agreed a framework for marine protected areas and environmental assessment in waters beyond national jurisdiction. It is the largest single extension of environmental governance in decades.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "BBNJ Agreement (UN)",
     "url": "https://www.un.org/bbnj/"
    }
   ]
  },
  {
   "id": "first-1-5-year",
   "year": 2024,
   "title": "2024 becomes the first calendar year above 1.5 degrees",
   "description": "Copernicus confirmed the global mean surface temperature exceeded 1.5 degrees above pre-industrial for a full calendar year for the first time. A single year does not breach the Paris goal, which is defined over decades, but the threshold ceased to be theoretical.",
   "category": "observation",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Copernicus Global Climate Highlights 2024",
     "url": "https://climate.copernicus.eu/global-climate-highlights-2024"
    }
   ],
   "milestone": true
  },
  {
   "id": "ai-energy-demand",
   "year": 2024,
   "title": "AI data centres emerge as a new source of electricity demand",
   "description": "Hyperscaler power consumption began rising steeply enough to delay coal plant retirements and reopen nuclear stations, while the same companies marketed AI as a climate solution. The cloud's materiality became a public argument.",
   "category": "technology",
   "frame": "threat",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IEA, Energy and AI (2025)",
     "url": "https://www.iea.org/reports/energy-and-ai"
    },
    {
     "title": "Crawford, Atlas of AI",
     "url": "https://yalebooks.yale.edu/book/9780300264630/atlas-of-ai/"
    }
   ]
  },
  {
   "id": "anthropocene-epoch-rejected",
   "year": 2024,
   "title": "Geologists decline to make the Anthropocene an epoch",
   "description": "On 20 March 2024 the IUGS confirmed the vote of its Quaternary subcommission rejecting a formal Anthropocene Epoch. The same statement conceded that the word would remain an invaluable descriptor of human impact on the Earth system. It lives on as a description of the present rather than a unit of rock.",
   "category": "institution",
   "frame": "mastery",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "IUGS-ICS statement, 20 March 2024",
     "url": "https://www.iugs.org/wp-content/uploads/2024/03/Anthropocene_short_IUGS-ICS_Statement-1.pdf"
    },
    {
     "title": "Edgeworth et al. 2024, Earth's Future",
     "url": "https://doi.org/10.1029/2024EF004831"
    }
   ]
  },
  {
   "id": "planetary-health-check-2024",
   "year": 2024,
   "title": "The first Planetary Health Check is published",
   "description": "The Potsdam Institute and partners began an annual assessment of the nine boundaries, turning a periodic research finding into a standing planetary diagnostic. GLOBAIA produced its visual identity.",
   "category": "institution",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "global",
   "significance": "major",
   "references": [
    {
     "title": "Planetary Health Check",
     "url": "https://www.planetaryhealthcheck.org/"
    }
   ]
  },
  {
   "id": "icj-climate-opinion",
   "year": 2025,
   "title": "The International Court of Justice issues its advisory opinion on climate obligations",
   "description": "Responding to a request initiated by Vanuatu and adopted unanimously by the General Assembly, the Court set out states' legal obligations regarding climate change. It is the furthest planetary politics has yet reached into binding legal reasoning.",
   "category": "law",
   "frame": "care",
   "scale": "planetary",
   "mode": "proaction",
   "stance": "promise",
   "region": "oceania",
   "significance": "major",
   "references": [
    {
     "title": "ICJ climate change advisory proceedings",
     "url": "https://www.icj-cij.org/case/187"
    }
   ],
   "milestone": true
  },
  {
   "id": "harmful-hope-2026",
   "year": 2026,
   "title": "Futures publishes a special issue on harmful hope",
   "description": "Ahola-Launonen and colleagues argue that hope organises sustainability debate in ways that can displace responsibility and defer transformation, and that hopeful UN discourse has become less self-reflective over five decades. The movement turns its critical attention onto its own optimism.",
   "category": "warning",
   "frame": "loss",
   "scale": "planetary",
   "mode": "reaction",
   "stance": "reckoning",
   "region": "europe",
   "significance": "notable",
   "references": [
    {
     "title": "Ahola-Launonen et al. 2026, Futures",
     "url": "https://doi.org/10.1016/j.futures.2026.103918"
    },
    {
     "title": "Lee & Hartwig 2026, Futures",
     "url": "https://doi.org/10.1016/j.futures.2025.103725"
    }
   ]
  }
 ]
}