Ecologist Russell Death paints the big picture on the state of our rivers and lakes.

They're called dead zones - patches of water that kill life - and NZ isn't immune to them.

COMMENT: Hard to feel jazzed about 2018 knowing Earth and its denizens are on brink.

Here's one relative you're probably glad didn't pop round for Christmas.

International scientific research ship JOIDES Resolution tackles Zealandia missions.

In our Science Made Simple series, we talk to mathematical modeller Dr Alex James.

Understanding prehistoric global warming events could tell us much about Earth's future.

COMMENT: Climate change has begun and we hardly remember the storms.

COMMENT: There is at least one thing we can all do - modify the way we eat.

NZ-led expedition investigates how warming oceans could erode huge ice sheet.

Govt says public consultation is the first step to a 30-year pathway to net zero emissions

Jacinda Ardern and James Shaw announce formulation of the Zero Carbon Act and an independent climate change commission.

Projections are under-estimating global warming, writes climate scientist Dr Jim Salinger.

Greens told that an indefinite moratorium on new coal, oil and fracking would cost $15b.

Ross Ardern's new job will move him closer to his daughter, Prime Minister Jacinda Ardern.

NZ doesn't have a co-ordinated plan to adapt to future climate change, Govt report finds.

New Zealand's glaciers have shrunk in area by one third since over the past four decades.

Plenty of pledges, no major promise at Paris summit.

Experts say humans have hit the limit for height, lifespan and physical performance.

COMMENT: A week of scorching summer weather already has economists worried about drought.

"Soul-crushing" footage has emerged of a starving wild polar bear searching for food.

Briefings: NZ needs to take hold of "window of opportunity" created by Paris Agreement.

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

Floods, droughts, wildfires coming Report on climate change sees grim outlook for region.

Insurance companies have faced record payouts for weather-related damage across NZ.

Closer to home Ardern would to do well to reflect on that.

Ardern used her global TV moment to call for politics to be taken out of climate change.

In his final episode, the true scale of man's impact on the planet is laid bare.

Campaign brings together climate change activists and experts from around the world.

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