New Zealand 2026 election: freshwater, pollution, biodiversity and resource management

For the 2026 New Zealand general election, the key environmental policy differences to examine are how parties propose to protect rivers and lakes, reduce pollution, restore native ecosystems, and manage land use, mining, farming and development.

A useful comparison separates four questions:

• Freshwater: What rules would apply to water quality, river health, wetlands, water allocation and agricultural runoff?
• Pollution: What would parties do about sewage, stormwater, agricultural emissions, waste, plastics and contaminated sites?
• Biodiversity: How would they protect native species, forests, wetlands, marine habitats and threatened ecosystems?
• Resource management: How would they balance environmental protections with housing, infrastructure, farming, mining and economic development?

One important distinction is whether a party proposes to strengthen environmental protections, change existing rules, or prioritise more flexible approvals for development. Those approaches can have different implications for communities, landowners and ecosystems.

What the main parties are proposing

The following comparison focuses on the seven main parties covered by the 2026 environmental policy comparisons. It distinguishes published party positions from the assessment of those positions by environmental organisations.

Election date: 7 November 2026. Policies and campaign material checked on 19 October 2026.

1. Freshwater, pollution and native biodiversity

Green Party

Emphasises healthy rivers, lakes and wetlands, protection of indigenous biodiversity, and regenerating land and ecosystems. Its published policy framework includes freshwater, land use, soils, forestry and hazardous waste. Complete Party PolicyGreenpeace 2026 General Election Scorecard

Policy details: Green Party policy library

Te Pāti Māori

Places environmental protection alongside Māori self-determination and relationships with whenua and waterways. Its environmental positions are assessed in Greenpeace's 2026 scorecards; consult its current policy material for the precise commitments on freshwater and conservation. Greenpeace 2026 General Election ScorecardTe Pāti Māori - Party for Party vote - NZ Election 2026

Policy comparison: Greenpeace's 2026 scorecards

Labour

Its 2026 programme is published through its policy library. On environmental questions, compare its specific commitments on water quality, farm pollution, conservation and the replacement of resource-management laws rather than assuming its previous government policies remain unchanged. Labour's 2026 Election PoliciesPolicies for Party vote - NZ Election 2026

Policy details: Labour's 2026 policies

National

Highlights productive farming, water and fertiliser security, infrastructure and economic growth. Its policy programme also supports replacing the Resource Management Act (RMA). The key questions are how the new system sets environmental limits and manages farming impacts, rather than simply how quickly projects can be approved. 2026 Election PolicyGreenpeace 2026 General Election Scorecard

Policy details: National's 2026 policies

ACT New Zealand

Has been part of the governing coalition's programme of resource-management reform and greater emphasis on enabling development and reducing regulatory constraints. Relevant questions include how its approach would treat pollution limits, consent requirements and the protection of ecosystems. Greenpeace 2026 General Election ScorecardLuxon ’s Three Years of War on Freshwater 2023-2026

Policy comparison: Greenpeace environmental scorecards

New Zealand First

Has supported the coalition's resource-management changes. Its wider 2026 programme includes opposition to New Zealand's participation in the Paris climate agreement. For freshwater and biodiversity, check its specific positions on mining, conservation land, farm rules and resource consents. The main parties vying to form New Zealand's next governmentGreenpeace 2026 General Election Scorecard

Policy comparison: Greenpeace environmental scorecards

Opportunity Party

Promotes protecting natural infrastructure, addressing climate change and restoring valued places. Its published 2026 platform also highlights clean energy and ending bottom trawling. Its detailed freshwater and pollution proposals should be checked against the party's specific policy documents. Opportunity PartyGreenpeace 2026 General Election Scorecard

Policy details: Opportunity Party

2. Resource management: the central policy divide

The replacement of the Resource Management Act is especially important because it affects how freshwater standards, pollution controls, mining, forestry, farming and infrastructure projects are approved.

Party	Broad approach to resource management
National	Replace the RMA and make it easier to deliver infrastructure and economic development. It also promotes water and fertiliser security for farmers. 2026 Election Policy
ACT	Emphasises reducing regulatory barriers and enabling economic activity. The practical issue is how environmental safeguards would operate under a more permissive consenting system. Greenpeace 2026 General Election ScorecardLuxon ’s Three Years of War on Freshwater 2023-2026
New Zealand First	Has supported the governing coalition's resource-management reforms. Its environmental approach should also be considered alongside its positions on climate and natural resources. The main parties vying to form New Zealand's next governmentGreenpeace 2026 General Election Scorecard
Labour	Its current commitments need to be distinguished from its earlier RMA reforms and freshwater policies. Its 2026 policy library is the relevant source for the current position. Labour's 2026 Election Policies
Green Party	Emphasises ecosystem protection, environmental regeneration and healthy freshwater, with detailed policies on land, water and biodiversity. Complete Party Policy
Te Pāti Māori	Emphasises environmental protection and Māori relationships with whenua and natural resources. Check its current policy documents for the exact proposed legislative mechanisms. Te Pāti Māori - Party for Party vote - NZ Election 2026Greenpeace 2026 General Election Scorecard
Opportunity Party	Promotes environmental restoration and protecting natural infrastructure alongside economic and institutional reform. Opportunity Party

The governing coalition's resource-management changes have attracted criticism from environmental organisations over the potential for weaker freshwater protections and increased development pressures. The government has generally framed its reforms around enabling growth, investment and infrastructure. These are competing policy priorities, so it is useful to examine the actual legislation and safeguards, not just the parties' descriptions of their intentions. Luxon ’s Three Years of War on Freshwater 2023-20262026 Election Policy

3. An independent environmental comparison

Greenpeace Aotearoa has published a 2026 environmental election scorecard comparing seven parties across freshwater, conservation, oceans, climate and environmental law.

Its overall assessment is:

• Green Party and Te Pāti Māori: A grades.
• Opportunity Party: B grade.
• Labour: C grade.
• National, ACT and New Zealand First: F grades.

These are Greenpeace's assessments, not official election ratings or a neutral government evaluation. Greenpeace says it used parties' responses to 20 questions and, where answers were unavailable, their established positions and public evidence from the previous parliamentary term. Greenpeace 2026 General Election ScorecardGreenpeace 2026 General Election Scorecard

For a second comparison, Policy.nz's 2026 environment policy guide lets you explore topics including freshwater and pollution, conservation, waste management and emissions reduction. Reading the parties' original policies alongside the scorecards helps distinguish specific commitments from an advocacy organisation's interpretation.

4. What to compare before voting

If freshwater and biodiversity are your main concerns, these are the practical questions most worth asking of each party:

Environmental policy checklist

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Will the party strengthen or relax limits on farm runoff, nitrates and other water contaminants?

Will it protect wetlands, native forests and threatened freshwater species?

Will it require polluters to prevent or pay for environmental damage?

Will its resource-management system maintain enforceable environmental limits on development and mining?

Will it fund restoration, monitoring, enforcement and local conservation work?

Will it protect Māori participation and existing Treaty-related arrangements for managing natural resources?

Bottom line: The main divide is between parties that emphasise restoring or strengthening environmental protections and those that prioritise enabling economic activity and reforming existing regulatory constraints. The decisive details are the enforceability of freshwater standards, protection of native ecosystems, accountability for pollution and the environmental limits built into the new resource-management system.

The strongest way to compare parties is to check their specific, costed commitments in these areas, alongside their record in government where relevant, rather than relying on environmental slogans or an overall score alone.