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.

  • NIWA science - making a difference

    An introduction to NIWA scientists and the wide range of work they do. Our staff work across freshwater, climate and ocean research platforms throughout New Zealand and the wider Pacific region.
  • Time for bold actions guided by science

    Feature story
    New Zealanders are fast becoming aware that our changing climate matters a great deal. NIWA Chief Executive John Morgan explains.
  • Setting new baselines in the southern seas

    Feature story
    While most New Zealanders were settling into their summer break, some scientists were double-checking their survival gear before heading to work deep in the Southern Ocean.
  • Our changing oceans

    Feature story
    The on-going rise of atmospheric carbon dioxide (CO2) that is fuelling climate change is also driving significant changes in the waters off our coasts.
  • NIWA's underwater health check

    Feature story
    At the bottom of our lakes are NIWA divers with waterproof clipboards. Sarah Fraser jumps in to find out what they’re doing.
  • Fighting fires - one forecast at a time

    Feature story
    When fire came to Pigeon Valley, Fire and Emergency came to NIWA.
  • Climate Matters - shaping our climate solutions

    NIWA is bringing together decision makers and influencers from across New Zealand this month to shape the science we need to respond to our changing climate.
  • A bird's-eye view of our carbon balance

    Feature story
    Dr Sara Mikaloff-Fletcher is looking to turn the internationally accepted science of monitoring greenhouse gas emissions upside down – and the rest of the world is watching closely.
  • Endless summers

    Feature story
    Susan Pepperell reports on a region trying to cope with a changing climate
  • Protecting freshwater taonga

    Taonga species such as tuna (freshwater eels), kōura (freshwater crayfish) and kākahi (freshwater mussels) are central to the identity and wellbeing of many Māori.
  • Super-model for a worldwide stage

    Feature story
    Demands for new weather and climate predictions are unprecedented as nations struggle to understand their exposure to risk from severe climatic events.
  • From Gore to NIWA via NASA

    Feature story
    A science-fiction fan, amateur actor, and eternal optimist, is now NIWA’s Chief Scientist for Climate, Atmosphere and Hazards.
    Susan Pepperell finds out more.