On average, the researchers found 1800 particles per litre.

Norwegian fishermen discover whale wearing a rather strange piece of equipment.

The polar bear was returned to the Russian Arctic.

Scientists seem untroubled by signs that the north and south magnetic poles will switch.

Increased Russian submarine activity in the Arctic is prompting the UK to act.

Unlike its southern equivalent, the North Pole is a destination without a marker.

Parts of the planet may have 60m sea level rises even if targets are met, scientists warn.

Writing her own death notice tickled Noni Kenny's "naughty" sense of fun.

Aliens, seals or a portal to another dimension... what are these circles in Arctic ice?

Arctic in danger of becoming international flashpoint as global powers fight for control.

Lucy Lawless to drop into Arctic waters to protest against oil drilling

Once thought to be spirits dancing, the aurora borealis still inspires awe.

A new study blames as much as half the decline in Arctic sea ice over recent decades on natural causes.

A Kiwi climate scientist says he's been alarmed at how much sea ice the planet's poles lost in 2016, in what was one of the hottest years on record.

COMMENT: Right now it's an unprecedented 22 degrees hotter than normal in the Arctic, and in just two years the North Pole could be completely gone.

Scientists have struck upon a simple equation that shows the true effect of greenhouse gases.

You know Dasher and Dancer, Prancer and Vixen, Comet and Cupid . . . ? Their cousins may all be dead soon.

It seems a story straight from a Cold War thriller - only the case of Camp Century is 100 per cent fact.

Judy Skatssoon keeps cool on a search for the stunning Northern Lights.

Forget polar bears, all Jim Eagles wants is a walrus.

The average air temperature over Arctic land reached 2.3 degrees F (1.3 degrees C) above average for the year ending in September. That's the highest since observations began in 1900.

Danger is never far away on an Arctic expedition, writes Sarah Marshall.

There's an Alice-in-Wonderland quality about Royal Dutch Shell's attitude towards the risks involved in its plan to drill for oil in the US Arctic.

Amid coal-dusted Stalinist buildings Jim Eagles finds a pole in the North Pole pointing to a pub ...

Diamonds are so hard to find that explorers have pretty much given up trying.

An Eton schoolboy was dragged from his tent by a rampaging polar bear and killed after his Arctic expedition was under-equipped with anti-bear safety measures.

From igloos to heli lodges in the Canadian wilderness, Jennifer Ennion looks at three of the Northern Hemisphere's top snow hotels.

Both New Zealand Greenpeace activists being held in Russia over an Arctic drilling protest have been freed on bail.

One of the two New Zealand Greenpeace protesters charged with hooliganism by Russian authorities has walked out of jail on bail today.

The first of 30 Greenpeace activists arrested by Russia in an Arctic protest two months ago has been freed on bail, in a case that has drawn attention both to Russia's ambitions in the region and its hard line against dissent.