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Climate Change & Nature Aotearoa New Zealand

Protect.  Restore.  Adapt.

Climate Change & Nature Aotearoa New Zealand

Protect. Restore. Adapt.


This website is an AI Free Zone: any typos, broken links, or errors  are due to a real human being. 


14 July 2026: El Niño update

Fig. 1: 1950+: ERSSTv5 (blue) • pre-1950: HadISST reconstruction (open gold) – sparse early ship data make magnitudes uncertain Peak = each member’s Jul-Dec 2026 maximum • July 2026 initializations • members weighted so every model counts equally Data: NOAA CPC (ONI, NMME, CFSv2) • Copernicus C3S • ECCC CanSIPS • JAMSTEC SINTEX-F; Chart: Zeke Hausfather

World Meteorological Organisation Annual to Decadal Climate Update (2025-2029) 

Key messages

  • 80% chance that at least one of the next five years will exceed 2024 as the warmest on record
  • 86% chance that at least one of next five years will be more than 1.5°C above the 1850-1900 average
  • 70% chance that 5-year average warming for 2025-2029 will be more than 1.5°C
  • Arctic warming predicted to continue to outstrip global average
  • Precipitation patterns have big regional variations
2025 global temperatures

Forty countries including Aotearoa have declared a climate emergency.
To help us understand and respond, this website is in 3 sections:

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The time is now, Ināia tonu nei, to lead the change we want to see and to remain steadfast to the values that underpin our nationhood—values like whanaungatanga kaitiakitanga and manaakitanga.Climate Change Commission

What some of us are doing to restore our native ecosystems, te manu o te taiao, and tackle climate change. Every project, big and small, includes resources to help you become climate resilient:

Explainers

With a focus on Waitaha Canterbury, this site includes resources relevant to all of Aotearoa

Instructions for interactive graph (Credit: The 2°Institute.)

  • Mouse over anywhere on the graph to see the changes over the last thousand years.
  • To see time periods of your choice, hold your mouse button down on one section then drag the mouse across a few years, then release it.
  • To see how this compares to the past 800,000 years, click on the ‘time’ icon on the top left.
  • To return the graphs to their original position, double-click the time icon.
  • The annual ups and downs in the graph are because plants accumulate carbon in the spring and summer and release some back to the air in autumn and winter. As the northern hemisphere has more land and more plants, carbon dioxide levels go up in winter because plants become less productive. Annual measurements of carbon dioxide are an average of these ups and downs.
Instructions for interactive graphs (Credit: The 2°Institute.)

  • Mouse over anywhere on the graphs to see the changes over the last thousand years.
  • To see time periods of your choice, hold your mouse button down on one section then drag the mouse across a few years, then release it.
  • To see how this compares to the past 800,000 years, click on the ‘time’ icon on the top left.
  • To return the graphs to their original position, double-click the time icon.
  • The annual ups and downs in the graph are because plants accumulate carbon in the spring and summer and release some back to the air in autumn and winter. As the northern hemisphere has more land and more plants, carbon dioxide levels go up in winter because plants become less productive. Annual measurements of carbon dioxide are an average of these ups and downs.