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

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    Reports

    Reports produced by NIWA’s air quality research.
  • Carbon dioxide

    Facility
    Atmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.
  • Clouds

    Education Resource
    Common questions about clouds, how they are formed and how they behave.
  • Raglan A, Cam-era monitoring site

    Raglan A

    This web camera is available thanks to the support of Waikato Regional Council.
  • 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.
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    Obtaining climate data from NIWA

    NIWA maintains the national climate database for New Zealand, and can supply data in a variety of ways.
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    The Intergovernmental Panel on Climate Change (IPCC)

    Education Resource
    The Intergovernmental Panel on Climate Change (IPCC) is charged with assessing the most up to date scientific, technical and socio-economic research on climate change.
  • 2012-2013 Drought

    The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.
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    Sediment and agriculture

    How may agricultural activities increase sediments in waterways?
  • Guidelines for sampling freshwater fisheries

    We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.
  • Splendid Sponges

    An interactive guide to the sponges of New Zealand.
  • Blue Lake, St Bathans

    Seasonal

    Publication series
    Seasonal climate summaries from summer 2001 to the present.