New Zealand should stay in the Paris climate agreement and keep to its emissions targets, even if it costs up to $5 billion and the United States has pulled out.
The Paris Agreement commits countries to emissions targets. Treasury estimates meeting New Zealand's 2030 target could cost $4.4 to $5 billion, because domestic cuts fall short and the gap has to be covered by buying carbon credits from other countries. The United States withdrew in January 2026 and is the only country ever to leave; China, India and the EU remain in, alongside about 195 parties. NZ First would also withdraw.
ACT
Strongly opposesWould repeal the Zero Carbon Act and scrap the 2050 net zero target, benchmarking any emissions cap against major trading partners instead. Wants Paris renegotiated over how it treats methane, and would leave only if those terms proved unreasonable, so this is opposition to the targets rather than a commitment to withdraw.
RNZ: ACT to scrap net zero and repeal the Zero Carbon ActGreens
Strongly supportsStrongly committed, campaigning on rapidly phasing out fossil fuels and mass electrification.
Green Party: Manifesto 2026Labour
Strongly supportsCommitted to remaining in Paris and to the existing emissions budgets.
Carbon News: Labour vows to reinstate the oil and gas banNational
SupportsRemains committed to Paris, while softening the domestic methane target and taking agriculture out of the ETS.
Beehive: Agriculture to come out of the ETSNZ First
Strongly opposesWould withdraw New Zealand from the Paris Agreement.
NZ Herald: Peters would leave the Paris AgreementTe Pāti Māori
Strongly supportsCommitted to climate action and resilience for vulnerable communities, framed through kaitiakitanga.
Te Pāti Māori: Policy
What this means in practice
The Paris Agreement commits countries to emissions targets. New Zealand's current target may require buying carbon credits from overseas to meet, which is the cost NZ First points to in arguing for withdrawal.
Supporters say
- Trade partners increasingly require climate credentials; leaving puts market access at risk.
- Climate impacts, drought, flooding, coastal erosion, cost New Zealand money already.
- Reputation matters for a country selling food and tourism on a clean image.
Opponents say
- Buying offshore credits sends billions overseas without reducing a single tonne here.
- New Zealand is well under 1% of global emissions; the cost is real and the effect on the climate is negligible.
- Targets set without a credible plan just penalise domestic industry.