Atmospheric analysis

Diverting water away from its natural channel for commercial or private use.

How does urbanisation increase sediments in waterways?

Coastal risk exposure for New Zealand, adaptation guidance for local government and relevant summaries of previous court cases and Building Act 2004 determinations.

There are several definitions of drought, depending upon whether it is viewed as a hazard or a risk.

A high proportion of New Zealand’s native freshwater fish fauna need to migrate to and from the sea.

The world’s oceans are acidifying as a result of the carbon dioxide (CO2) generated by humanity.

In comparison to the vast span of geological time, the estuaries that we see today are very recent coastal features.

NIWA is today issuing some scientific information on the parasite Bonamia ostreae, recently discovered in Big Glory Bay, Stewart Island, and the risk it poses to the Bluff oyster fishery.

This Statement of Corporate Intent (SCI) sets out NIWA's strategy for delivering against its core purpose over the next five years.

A monthly summary of the climate in the tropical South Pacific islands, with an outlook for the coming months.