A NIWA-led study has found New Zealand’s native forests are absorbing more carbon dioxide (CO2) than previously thought.

Regional predictions for June – August 2025 The tables below show the probabilities (or percent chances) for each of three categories: above average, near average, and below average. In the absence of ...

A new online simulation game that enables New Zealanders to experience a climate-changed future and explore choices has been launched.

Seven nations sharing world’s longest mountain range already impacted by climate change Climate change is already reshaping life and landscapes across the world’s longest mountain range which extends ...

Overview 2024 was Aotearoa New Zealand’s 10th-warmest year on record. The 2024 nationwide average temperature calculated from NIWA’s seven station series was 13.25˚C, being 0.51˚C above the 1991-2020 ...

November 2024 was characterised by a large belt of higher-than-normal mean sea level pressure that straddled Aotearoa New Zealand and the surrounding seas. This pressure setup resulted in a relatively ...

Microbes - such as those living in wetlands, landfills or the digestive tracts of livestock – are behind unprecedented spikes in methane emissions.

A new species has been named after favourite Wellington brewpub Fork and Brewer. Pentaceration forkandbrewer – a marine isopod found off the east coast of New Zealand – was given its formal scientific ...

RiskScape has been used to assess climate-related coastal flood risk in the Pacific. The tool provides critical information to allow six Pacific nations – Cook Islands, Republic of Marshall Islands, ...

The NIWA and MetService assessment of tropical cyclone activity indicates six to 10 named TCs could occur in the Southwest Pacific from November 2024-April 2025.

NIWA is pleased with the announcement today by the Science, Innovation and Technology Minister of the Government’s response to a recent review of New Zealand’s weather forecasting system.

Scientists have found a new ghost shark that lives exclusively in the deep waters of Australia and New Zealand. The Australasian Narrow-nosed Spookfish was described by NIWA Fisheries Scientist Dr ...