Land Held in Trust

This essay opens a new page on globaia.org — /nz/, an interactive map of the public conservation land of Aotearoa New Zealand that the Conservation Amendment Bill of 2026 would make eligible for sale, exchange, or commercial development. It is built on the Department of Conservation’s own boundaries and on Forest & Bird’s reading of the Bill, and it is best read not as a forecast but as a portrait of a possible country — the one that becomes legally permissible if the Bill passes as drafted.

Aotearoa New Zealand did something rare. Over a century and a half, it set aside roughly a third of its own land — about 8.5 million hectares — and placed it in the care of the public — a “common heritage of all New Zealanders,” to be managed so as to safeguard “the options of future generations.”¹ National parks and wilderness areas, beech forests and tussocklands, the alpine spine of the South Island and the wetlands that filter its rivers. Most countries protect a fraction of that. It is one of the largest acts of self-restraint a settler nation has ever made with its own territory, and it is worth saying plainly, because the thing being discussed in Wellington this winter is whether to begin undoing it.

On 7 May 2026, the government introduced the Conservation Amendment Bill — Bill 309, the largest reform of conservation law in nearly forty years. It passed its first reading on 12 May, sixty-eight votes to fifty-four, and now sits before the environment select committee, which is taking public submissions until 2 July 2026.² Much of the Bill is administrative tidying that few would mourn. But three changes, taken together, reverse the direction of a forty-year commitment.

The first is a new core function for the Department of Conservation. A proposed section 6(ea) instructs the Department “to recognise the economic opportunities that arise from the use and development” of the land it manages, “and to enable this use and development to the greatest extent practicable.”³ Set against the Act’s older duty to protect and preserve — language qualified only by “so far as is practicable” — the new wording is deliberately stronger, and it applies to one hundred per cent of the conservation estate. For the first time, enabling development becomes part of the purpose, not an exception to it.

The second loosens the rules for selling and swapping land. Until now, conservation land could be disposed of only where it held “no or very low” conservation value. The Bill replaces that with a far weaker test: the Minister may sell land so long as it is not important for threatened species or ecosystems and is not “one of the best examples” of its habitat type in its ecological district. Land may also be exchanged whenever the Minister judges the incoming parcel to offer a “net conservation benefit” — a remote, intact habitat traded, in principle, for somewhere more convenient. By Forest & Bird’s reckoning, about sixty per cent of the estate would become eligible for sale or exchange.⁴ National parks, wilderness, ecological and marine reserves remain protected under a new Schedule 5; conservation parks, stewardship land, and most reserves do not.

The third change is quieter and, in its way, the gravest. The Bill moves decisions toward the Minister and the Director-General and away from the independent New Zealand Conservation Authority, the regional Conservation Boards, and the public — who, on land disposals, may be notified but have no right to be heard. And a new section 4A reworks how the Department must give effect to the principles of Te Tiriti o Waitangi — the government frames this as a clarification that leaves the existing duty intact, while Te Rūnanga o Ngāi Tahu and Te Pāti Māori warn it narrows that duty and cuts against existing Treaty settlements.⁵

The map at /nz/ renders this in two colours over the country’s true boundaries: orange for land that would stay off the auction block but be opened to commercial use, red for land that could be opened and sold or swapped. It is important to be exact about what the red means. It is not a prophecy that any particular valley will be sold. It is a map of what would become permissible — the legal aperture the Bill would open. Whether much is ever sold depends on ministers not yet in office and pressures not yet arrived. The map shows the door, not the traffic through it.

And yet the door is the news. Because the deeper unease here is not the worst case — it is the premise. Set this Bill against everything the last two decades of Earth-system science have established, and it runs precisely against the current.

We now know the planet keeps us within a narrow operating space, and that we are leaving it. Of the nine planetary boundaries that bound a safe Earth, seven have now been crossed, and the integrity of the biosphere — the living fabric that stores carbon, cycles water, and pollinates the crops — is among the most badly transgressed.⁶ The international response has been to set science-based targets that all point the same way: protect more, and faster. Under the Kunming-Montreal Global Biodiversity Framework, which New Zealand has signed, the world agreed in 2022 to conserve at least 30 per cent of land and sea by 2030 — the 30×30 target — as a floor, not a ceiling.⁷ The scientists who mapped where that protection must go, in the Global Safety Net, found that roughly half the terrestrial surface must be safeguarded to stabilise the climate and halt extinction — a 50-by-2050 horizon that echoes E. O. Wilson’s call for a Half-Earth.⁸ The IPCC, for its part, counts protecting and restoring intact forests and wetlands among the largest and most cost-effective natural carbon sinks we have, and warns that losing them makes every other climate target harder.⁹

Aotearoa, with a third of itself already protected, sits ahead of these targets. It is, on paper, a model of what the agreements ask for. To make most of that estate sellable now is not a neutral administrative reform; it is to spend down a lead that most nations would give a great deal to hold.

There is a further frame, and it is the one this site has long argued from. Land that stores carbon, holds freshwater, and shelters living habitat does work that keeps the whole planet liveable. Earth-system scientists have begun to call such systems the planetary commons — the critical Earth-regulating functions held in the common interest of all humanity, present and future, wherever they happen to fall inside national borders.¹⁰ Fiordland’s forests and the peat wetlands of the south are New Zealand’s to govern, but their carbon and their species are a thread in a fabric we all stand on. Seen that way, the question is not only what a country may do with its property. It is whether a piece of the commons should be for sale at all.

The people of these islands already have a word for the alternative, older than any statute. Kaitiakitanga — guardianship, the obligation to care for the land and waters and pass them on undiminished. It is not a metaphor here. Tongariro became the country’s first national park in 1887 when Ngāti Tūwharetoa gifted its sacred peaks to the nation rather than see them divided. The Whanganui River, and in 2025 Taranaki Maunga, have been granted the legal standing of living persons. A society that can recognise a mountain as an ancestor is being asked, by this Bill, to treat protected wild land as an asset on a ledger — and to make protection itself, for the first time, a thing that can be reversed.

That is the worry, stated cleanly. Not that the sky falls, but that the ratchet loosens. For four decades, conservation in New Zealand worked like a one-way door: land was set aside, and kept. The Bill would fit that door with a handle on the other side. Even if it is rarely turned, the fact that we now think it reasonable to fit the handle at all — in this decade, knowing what we know — is the part that should give us pause.

Submissions to the select committee close on 2 July 2026. The map at /nz/ is there to make the choice legible: to show, parcel by parcel, what a country is being asked to put within reach of sale, and to ask whether that is the direction we mean to face. Stewardship is not a possession. It is a decision each generation makes again — to hold the land in trust, or to let go of it.