NIWA

Climate, Freshwater & Ocean Science

Homepage revamp Nov 2018

Covering Climate Now

17 September 2019
Expect to hear a lot more about climate change in the news in the weeks ahead – and a lot about NIWA’s work underpinning the science that is signalling a warmer world right now and its effects in the future.
Climate
Climate change
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Fish snack on microplastics

22 October 2019
Microplastics are being fed to snapper, New Zealand’s most popular recreational fish species, at NIWA’s aquaculture research facility near Whangarei in a bid to establish some baseline data about how fish are being affected.
Aquaculture
Ecosystems
Fish
Pollution
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Researchers seek help on lobster catches

16 October 2019
NIWA researchers are seeking the help of divers, snorkellers and lobster potters in the Hauraki Gulf and Bay of Plenty to learn more about how rock lobster are faring.
Fish
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Popular services and publications

UV index
Tide forecaster
Cam-era
NiwaWeather
Seasonal Climate Outlook
Our services

More top stories

10 October 2019
Media Release

Scientists share stunning images

Castle Hill attracts two types of enthusiasts – climbers and astrophotographers...
3 October 2019
Media Release

Planning an ocean observation network

New Zealand’s changing ocean environment has prompted the call to develop a system that will keep closer tabs on information from scientific monitoring buoys so the data they produce can be shared as widely as possible.
30 September 2019
Media Release

Scientists help lamprey to spread the love

Contraptions that resemble upside-down kitchen sinks have been placed in the Waikawa River in Southland to attract a notoriously elusive native fish species.
18 September 2019
Media Release

Fiordland air samples revealing carbon secrets

Air samples from the native Fiordland forest are being collected by researchers as one of the first steps in an ambitious new NIWA-led project to reassess New Zealand’s carbon budget.
Read all news releases...
Read all news releases...

CarbonWatchNZ

Combining measurements of greenhouse gases in the air above New Zealand with models that tell where those gases have come from, CarbonWatch NZ is giving us a bird's eye view of our country’s carbon balance.

Find out more

Features

Ocean acidification—what is it?

18 February 2019

The on-going rise of carbon dioxide (CO2) in the atmosphere is not only changing our climate—it is also changing our oceans. Take a look at the work of the NIWA-led CARIM project into what these changes may mean for the delicate balance of marine life.

Super-model for a worldwide stage

Super-model for a worldwide stage

12 June 2019
Demands for new weather and climate predictions are unprecedented as nations struggle to understand their exposure to risk from severe climatic events.

Protecting freshwater taonga

Protecting freshwater taonga

12 June 2019
Taonga species such as tuna (freshwater eels), kōura (freshwater crayfish) and kākahi (freshwater mussels) are central to the identity and wellbeing of many Māori.

A bird's-eye view of our carbon balance

A bird's-eye view of our carbon balance

13 June 2019
Dr Sara Mikaloff-Fletcher is looking to turn the internationally accepted science of monitoring greenhouse gas emissions upside down – and the rest of the world is watching closely.