Climate & Weather

Understanding our variable and changing climate is critical for managing resources and reducing risks.

  • Effects of ocean acidification on plankton in New Zealand waters

    Research Project
    Our oceans are expected to become more acidic as carbon dioxide concentrations rise. This will likely have impacts on the plankton, which play a major role in ocean ecosystems and processes.
  • Plankton biodiversity in the Southern Ocean

    Research Project
    NIWA is conducting a five–year study to map changes in the distribution of plankton species in surface waters between New Zealand and the Ross Sea.
  • UV Science Workshops

    Find out more about our national UV workshops
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    Has the climate changed in the past?

    The Earth's climate has exhibited marked "natural" climate changes, with time scales varying from many millions of years down to a few years.
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    Why is there water flowing in a river when it isn’t raining?

    In the absence of rain, most of the flow in a river is water that drains slowly from the ground.
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    Rainy Wellington days

    News article
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    New climate change projections released for New Zealand

    News article
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    Winter in Queenstown

    In a meaningful context, students will be able to explain the meaning of negative numbers, sketch and interpret graphs which represent everyday situations and make statements about time-related variation.