Last summer's record warmth - on land and sea - a taste of what might come this century.

Scientists finger climate change in trends showing warming NZ seas over past 30 years.

Jacinda Ardern was part of a climate change panel at the World Economic Forum in Davos

COMMENT: I am rebranding as the only columnist any rational person will ever want.

How warm would the ocean have to get to melt Antarctica's marine ice sheets, study asks.

COMMENT: Fossil fuels stripped of carbon leave clean hydrogen for use.

Trump might have been joking, but but scientists see nothing to laugh at.

The massive East Antarctica ice sheet is already a major contributor to sea-level rise.

One of the worst towns for air pollution the focus of a study pin-pointing NZ's problems.

From time travel to dreams, scientists answer - or try to - 10 of the biggest questions.

Just how cold does it get at Antarctica's Scott Base? Jamie Morton explains.

'As the ocean continues to warm the ecological changes could be catastrophic.'

A glaciologist's epic trek across France-sized ice shelf will help unlock climate clues.

The heating seas could permanently hurt our marine ecosystem, scientists say.

Kiwi scientists have found a clever way to look at how climate change will hit Antarctica.

Researchers are examining how much heat waves may have contributed to the jellyfish bloom.

OPINION: Imagining a world of change as daughter Greta grows up.

EDITORIAL: Few modern leaders have had such a tough year.

It seems they are now realising that the expense of doing nothing is rising rapidly.

While NZ is getting drenched, Australia is bracing for heatwaves not seen since the 1930s.

A year ago Kaiaua was devastated by a monster storm.

If you're prone to migraines, you might want to reconsider that Chrissy tipple.

The creature's behaviour is said to compare to Trump's stance on global warming.

Could bees be the key to better biosecurity? Scientists think so.

"You are not mature enough to tell it like it is."

Gruelling negotiations in Poland have added legal flesh to bones of 2015 Paris agreement.

Kiwi and Korean scientists are teaming up to measure Antarctica's subtlest changes.

Almost 200 countries agreed to the rules which would put the Paris treaty into action.

The head of the Maldives delegation questions the point of the yearly summits.

Agreement on the fine print of the Paris climate accord drew closer Thursday.