Heatwave set to continue for another two days but weather could turn nasty from Thursday.

If you thought it's been humid already, be warned - it may be about to get stickier.

The last time summer was running this hot, Nazis ran Germany. What's been the difference?

You think it's been hot so far this summer? Wait till tomorrow.

Outdoor activities that were safe to do in cooler conditions could now become hazardous.

People with multiple sclerosis are particularly vulnerable to extreme heat.

Waiau in North Canterbury records 37C as January is on track to be our hottest month ever.

Kiwis are facing a muggy, wet remainder of the summer.

January on track to be hottest in recorded history.

New photos reveal an abundance of life in the freezing waters beneath Antarctica's ice.

Uh-oh. Higher than normal rainfall forecast for most of the country in the next two weeks.

Last year was one of New Zealand's hottest on record. What will 2018 bring?

Flooding is causing havoc in parts of Tauranga as rising tides hit.

International scientific research ship JOIDES Resolution tackles Zealandia missions.

What will happen to NZ's oceans in the future? A cutting-edge model will soon tell us.

Between 150-200mm of rain is needed to break this dry spell, Brian Doughty says.

Lightning has been peppering the Waikato and Bay of Plenty today.

Scientists have gathered a sediment sample from deep below the Pacific Ocean's surface.

2017 will be a record year for extreme weather events, following fires, floods and storms.

Feeling beat by the heat? Scientists share some tips on how to help our bodies adapt.

Briefings: Dire warnings about growing demands for freshwater in New Zealand.

The number of days with temperatures over 25C could quadruple in the next 100 years.

Rapid warming of the ocean near Tasmania a sign of things to come under climate change.

What's been cranking up the heat? Niwa meteorologist Ben Noll explains.

Auckland's sun-loving leopard seal Owha has a new mate to share the summer with.

Protection for the pristine Ross Sea is a dream realised for Kiwi film-maker Peter Young.

Parts of the South sweltered for a second day today.

Ocean drones will probe the wild Cook Strait in new study dubbed "Project Cookie Monster".

We look at 10 of the most exciting new science projects just awarded Marsden Fund grants.

The year's wet weather brought with it more need for cold and flu meds