News

Floods are not unusual in New Zealand, but those that hit us early this winter broke records. Why did they occur? Should we expect more? Can we predict future floods?

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

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

The seafood counter at your local supermarket has changed.

The coldest seawater on earth could help scientists understand why Antarctic sea ice is growing in a warming world

The Kiwi dream of owning a beachfront property with panoramic views of the ocean is under threat—and not just for financial reasons.

New Zealand’s forests and other land areas may be absorbing up to 60% more carbon dioxide than has been calculated, with much of this uptake likely occurring in native forests, NIWA scientists have discovered.

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.

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.

NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?

Returning water to our waterways after we’ve used it in our homes, on farms and in industry is a complex and challenging process.

Scientists exploring the Kermadec Trench believe they have retrieved the deepest ever sediment sample from the bottom of the ocean using a wire-deployed corer.