Atmospheric analysis

Find out more about emergent aquatic plants.

Al Brown is an award-winning chef, co-owner of Wellington’s Logan Brown restaurant, television presenter on Hunger for the Wild, writer, and fisherman.

What are the impacts of water dams on water quality and mahinga kai?

West Coast is New Zealand’s wettest region, and this may be attributed to its exposure to the predominant westerly airflow over the country, combined with the orographic effect of the Southern Alps.

Blooms of hazardous cyanobacteria (blue-green algae) in rivers, lakes and reservoirs can cause problems for both animal and human health.

The greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space.

How do nutrients from wastewater treatment enter waterways?

Instrument Systems is a specialised technology-focused consulting group within NIWA.

If you're collecting sea shells at the beach this summer and wondering what they are, NIWA is here to help.

New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.

Wood chips and plant material make pulp that is used to produce paper products.