On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Climate change

Climate change effects are accelerating, driving the need for actions informed by sound climate knowledge.

Glacier Extinction Horizons
  • Wellington will get significantly warmer, new climate change report shows

    Media release
    Wellington city will have warmer autumns, almost a month of days over 25°C and up to 10 per cent more winter rain by 2090, according to a new NIWA climate report.
  • Climate change and variability - report for the Greater Wellington Region

  • Climate change will cause more deaths from air pollution, study finds

    Media release
    New research estimates that if climate change goes unchecked 60,000 more people will die globally from air pollution in 2030 – just 13 years away.
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    Tuna - glass eels

    Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December.
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    NZ Drought indicator products and information

    Drought is a common feature of New Zealand's climate. On average, every year or two somewhere in New Zealand experiences a drought.
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    Investigating ocean acidification

    Feature story
    The world’s oceans are acidifying as a result of the carbon dioxide (CO2) generated by humanity.
  • Shifting Sands – the end of a Kiwi dream

    Feature story
    The Kiwi dream of owning a beachfront property with panoramic views of the ocean is under threat—and not just for financial reasons.
  • Native forests absorbing more carbon dioxide

    Media release
    New Zealand’s forests and other land areas may be absorbing up to 60% more carbon dioxide than has been calculated, with much of this uptake likely occurring in native forests, NIWA scientists have discovered.
  • Glaciers don't lie

  • Assessment of crop and tree species growing potential using climate, soil and topographic information

    Research Project
    This project demonstrates how to assess high value alternative land-use options by means of a quantitative analysis of the growing potential of selected niche crops and tree species.
  • Climate Change Vulnerability Assessment (CCVA)

    Service
    To prepare for changes in climate, our freshwater and oceans decision-makers need information on species vulnerability to climate change.
  • Regional modelling of New Zealand climate

    Research Project
    Developing probabilistic scenarios of expected future regional climate changes.