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

Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

  • Air quality project with Alexandra primary school

    Air quality in Arrowtown - 2019 Arrowtown School project

    NIWA worked with Year 8 students at Arrowtown School to analyse, visualise and communicate air quality data.
  • Arrowtown, NZ

    Air quality in Arrowtown - 2019 results

    Read a summary of results and download our full report on 2019 outdoor air quality.
  • Baring Head

    Greenhouse gas analyses

    NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 30 years.
  • Te_Kuwaha_banner

    Te Kūwaha and Māori

    Sharing knowledge with Māori communities and empowering Māori business with the latest science.
  • Freshwater

    Freshwater

    We provide public information on river, lake, and groundwater conditions across New Zealand including freshwater quantity and quality.
  • Snapper

    Open wide: snapper teeth secrets

    News article
    NIWA and University of Auckland masters student Georgia Third is getting up close and personal with snapper guts and teeth to understand the differences between biologically distinct snapper populations in New Zealand.
  • Oceans

    Oceans

    NIWA aims to provide the knowledge needed for the sound environmental management of our marine resources.
  • Counting carbon – NZ contributes to global CO2 stocktake

    Media release
    New Zealand researchers have contributed to the first ever stocktake of global greenhouse gas emissions.
  • NIWA discovers over two dozen new marine species in Wellington inlet

    Media release
    Researchers have discovered 26 species of roundworms that are completely new to science.
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    NIWA undertakes post-Gabrielle seabed mapping in Hawkes Bay

    Media release
    NIWA scientists will be in Hawkes Bay this week to map the seabed to measure the effects of Cyclone Gabrielle
  • NZ “ballerina sponge” in top 10 new species list

    Media release
    A fossilised sponge from New Zealand has been named as one of the top 10 new marine species of 2022.
  • Further ice loss for NZ’s glaciers

    Media release
    NIWA’s annual end-of-summer snowline survey has revealed continued loss of snow and ice for New Zealand’s famous glaciers.