Around 1.4 billion years ago, a day on Earth lasted just 18 hours, scientists say.

More than 200 businesses, leaders and community groups sign letter backing zero carbon.

Meat-lover NZ First MP Shane Jones says he would drop a meat meal but only for tuna.

A new study has suggested a fresh way to account for key greenhouse gas methane.

They're the wiliest of our bird-killing pests. How can we possibly hope to beat the stoat?

Forests and birds living in them were also wiped out by the dinosaur-killing K–Pg event.

50 years on from the Manapouri saga, NZ's laws have failed its environment, writer argues.

Climate change puts animals with white fur in danger as it leaves them vulnerable.

A top panel has laid out starting points for NZ to prepare for a warmer, wilder future.

Global warming isn't just a threat to our coastal communities: but to our health. Why?

National Geographic's cover is going viral featuring image called "one for the ages".

What's touted as the "the greenest Budget ever" puts over $600m toward environment areas.

Buildings could be belching out 20 per cent of NZ's carbon pollution, new report finds.

'Every time you spend money, you're casting a vote for the kind of world you want'

Making materials from tiny amounts of our natural resources could combat climate change.

Peters says foreign spending boost needed in "turbulent" times internationally.

Harsher droughts under climate change could threaten our crops with serious diseases.

Bill McKibben is in NZ to talk about taking on business interests over climate change.

Report shows ''major changes will be needed," commission chair Murray Sherwin says.

More Kiwis want climate action, but many still don't care despite time running out.

Kiwis cite everything from cash savings to Donald Trump in explaining their switch to EVs.

Unusual sea conditions likely caused scores of little blue penguins to starve to death.

The region spends $135b on defence - but just 1.5b on climate mitigation.

Forestry companies want foreign help to reach the Govt's 1 billion trees target.

PM says new resolve on climate change and trade for Commonwealth leaders.

Large parts of Great Barrier Reef were literally cooked to death.

Researchers say we need to find out which communities will be worst hit by climate change.

Melting glacial ice sheets make the ocean's surface layer less salty and more buoyant.

NZ now losing nearly 200m tonnes of soil each year, with consequences for our environment.

Banning off-shore oil and gas exploration was easy, much harder decisions lie ahead.