New Zealand curbs corporate climate lawsuits

August 20, 2026

New Zealand has approved controversial legislation designed to prevent companies from being sued in civil courts over damage allegedly caused by their greenhouse gas emissions and contribution to climate change.

The legal amendment passed its final parliamentary vote on Tuesday, August 18, with 67 lawmakers supporting the measure and 53 voting against it.

The country's right-leaning coalition government argues that climate policy should be determined through national legislation rather than individual lawsuits. Officials say allowing courts to establish separate corporate climate obligations could create regulatory uncertainty, weaken investor confidence and conflict with the emissions framework already established by Parliament.

The legislation was introduced amid a high-profile climate lawsuit brought by Māori climate activist Michael Smith against six major New Zealand companies.

Climate lawsuit against major New Zealand companies

Smith's case sought to hold several prominent businesses responsible for environmental damage associated with their greenhouse gas emissions. Among the defendants was Fonterra, New Zealand's major dairy cooperative and one of the country's best-known companies.

The new legislation effectively brings the legal challenge to an end by restricting this type of civil climate litigation.

Smith strongly criticized Parliament's intervention, describing the decision as a serious setback for democratic accountability. Speaking to New Zealand broadcaster RNZ, he argued that allowing lawmakers to terminate an active court case could create a dangerous precedent for other legal claims that become politically contentious.

The legislation has also faced fierce criticism from opposition politicians.

Green Party MP Steve Abel argued in Parliament that courts should remain an avenue for addressing climate-related harm when government policies and voluntary action by industries fail to deliver sufficient results.

Abel accused the companies involved in Smith's lawsuit of turning to the government after failing to stop the case through the legal system.

Government says law will reduce business uncertainty

Justice Minister Paul Goldsmith defended the amendment, saying businesses need greater certainty about their responsibilities for greenhouse gas emissions.

According to Goldsmith, ongoing litigation could effectively establish a separate climate liability regime through court decisions, potentially conflicting with rules already adopted by Parliament.

The government believes such uncertainty could negatively affect investment and business confidence.

Goldsmith also argued that courts are not the appropriate institutions for determining how responsibility for climate change should be distributed among individual companies.

Climate policy involves interconnected environmental, social and economic considerations, he said, making a nationwide regulatory framework more suitable than separate lawsuits against individual emitters.

Under the government's approach, responsibility for managing New Zealand's response to climate change should therefore remain primarily with elected officials and national institutions.

Climate commission warns New Zealand could miss targets

The decision comes as New Zealand faces growing scrutiny over whether its existing climate policies are sufficient to meet national emissions reduction targets.

The Climate Change Commission, an independent advisory organization established under legislation in 2019, recently warned that current government policies could put the country's climate commitments at risk.

In a report released last month, the commission said Prime Minister Christopher Luxon's government had not followed some of its emissions reduction recommendations during 2025.

The commission warned that the window for correcting New Zealand's emissions trajectory is narrowing.

Several policy decisions could contribute to higher emissions, according to the advisory body. These include excluding agriculture from emissions pricing, modifying clean vehicle policies, reducing some corporate reporting requirements and pursuing plans for a liquefied natural gas import facility.

The commission said additional emissions generated by these measures could outweigh reductions achieved through other climate initiatives.

New Zealand faces growing climate policy debate

Climate Change Commission chief executive Jo Hendy described the latest findings as a clear warning about the country's progress.

While New Zealand's overall emissions have been gradually declining, the commission found that progress stalled in 2024 and warned that current policies are not reducing emissions quickly enough.

The new legislation restricting corporate climate lawsuits is therefore likely to intensify debate over how New Zealand should enforce climate accountability.

Supporters of the law argue that a unified national framework provides companies with predictable rules and prevents courts from creating fragmented climate obligations.

Critics, however, contend that limiting access to civil litigation removes an important mechanism for holding major greenhouse gas emitters accountable, particularly when government climate policies are considered insufficient.

With the Climate Change Commission already warning that New Zealand risks falling behind its emissions reduction goals, the dispute highlights a broader question facing governments worldwide: whether climate responsibility should be determined exclusively through legislation and regulation or whether courts should also play a role in addressing climate-related harm.