How may agricultural activities impact riparian vegetation around a waterway?

PPM and PPB are units used in atmospheric chemistry to describe the concentration of gases.

Data from our research which we make publicly available.

NIWA makes a range of trace gas data freely available on our FTP site.

View a collection of maps showing the impact of past El Niño and La Niña events.

Tuna or freshwater eels are a very significant, widely-valued, heavily-exploited, culturally iconic mahinga kai resource.

A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too.

Water clarity or turbidity is the cloudiness or haziness in a fluid caused by individual small particles (suspended solids).

Impacts of hydro-electric activities on water quality and mahinga kai.

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.