Here are four possible scenarios.

DoC has taken for further study a female bronze whaler washed up on the North Shore .

A new study aims to trace Auckland's microplastic pollution back to their source.

Fisherman who saved toddler from the ocean at Matata Beach first thought it was a doll.

We're in for a balmier summer, with a strange El Nino showing up late to the party.

Commission couldn't reach unanimous vote without support from Russia, China and Norway.

These Hawaiian sea safaris are more Blue Planet than Life Aquatic.

Call for urgent action as findings show more heat stored than previously thought.

"A lot of people imagine underwater is this really quiet place, but it isn't."

Northland surfer Andrew Brough speaks about the moment a great white shark sunk its teeth into his body.

Royal couple to help clear cigarette butts from Melbourne beach.

A pod of killer whales have been spotted in the waters of Wellington's Lyall Bay.

From next week if you look into Auckland's harbour you will see strange floating objects.

Over 100 stingray caught on camera enjoying the shallow waters near Great Barrier Island.

Neve charmed people and awakened the parts of their brains that want to protect life

COMMENT: Plastics are affecting turtle populations but probably not in the way you think.

The explanation isn't overly scientific either, NIWA says.

Norman and climate activist Sara Howell were discharged without conviction.

UQ Global Change Institute Director Professor Ove Hoegh-Guldberg explains significance of new research that has found evidence to suggest the 2016 coral bleaching on the Great Barrier Reef also affected deep reefs. Credit: UQ Global Change Institute

Climate change may threaten even the darkest depths of world-renowned Great Barrier Reef.

The floating boom was being towed from San Francisco to the Great Pacific Garbage Patch.

Top NZ scientist dismayed at allegations of Japanese whaling in new Antarctic reserve.

The Viaduct Harbour will receive their much awaited Seabin - the first one to be installed in New Zealand. / The Seabin project

Life could exist on the huge number of "water worlds" in our solar system.

Century-old shipwreck revealed by most complex seafloor survey ever undertaken in NZ.

University of Otago whale researchers tasked to find "Saildrone" missing since 2015.

Māori nationwide to be asked: "What is keeping you awake at night?"

Federica Mogherini says the EU is always a solid, reliable partner.

Kite surfers putting on an impressive display while taking advantage of the southerly gale and big swells at Lyall Bay on Wellington's south coast.

The Southern Ocean below NZ absorbs 40 per cent of CO2 emissions. But for how much longer?