Our planet reached another miserable milestone earlier this week: Sea ice fell to its lowest level since human civilization began more than 12,000 years ago. That worrying development is just the latest sign that rising temperatures are inflicting lasting changes on the coldest corners of the globe. The new record low comes as the planet’s climate system shifts further from the relatively stable period that helped give rise to cities, commerce, and the way we live now.

Is this real? Only a select few have ever laid eyes on this sea arch, tucked away in Nunavut,Canada.

Tracking collars on female polar bears measure the animals' struggle to find food on diminishing Arctic ice.

A short drive north of Fairbanks, Alaska, there's a red shed stuck right up against a hillside. The shed looks unremarkable, except for the door. It looks like a door to a walk-in freezer, with thick insulation and a heavy latch. Whatever is behind that door needs to stay very cold. "Are you ready to go inside?" asks Thomas Douglas, a geochemist at the U.S. Army.

Just what exactly is permafrost? And what is happening now that it's warming up? To find out, we enter the Arctic Circle's secret world of ice and frozen history.

There’s new evidence that an unprecedented transformation is underway at the North Pole. By Eric Holthaus.

The harsh icy sea is one of Earth’s biggest gas and oil hotspots – and Russia’s sending its military to stake its claim. By David Hambling.

An international summary of five year's worth of research on Arctic climate change concludes the top of the world is getting warmer faster than anyone thought. And if it all sounds interesting but a little far removed from southern concerns, David Barber has news for you. "There are very clear linkages there and they've been occurring consistently for the last 10, 15 years," said Barber, one of Canada's top ice scientists and a prominent contributor to the report.

Using a small robotic sub, scientists from Columbia University have captured rare video of arctic jellyfish slithering along the bottom of the Chukchi Sea near Utqiaġvik, Alaska. The footage came as a complete surprise to the researchers, who weren’t expecting to see jellyfish during the Arctic winter.

For the 24 years I was privileged to serve in the U.S. Senate, I opposed oil development in the Arctic National Wildlife Refuge in Alaska. The 19 million acres in the Arctic Refuge are some of the world’s wildest, most unspoiled lands and are a part of America’s great national heritage. The Arctic Refuge is one of the places on Earth where we come closest to glimpsing the creative work of God. It should inspire our awe and careful stewardship. The native Alaskan Gwich’in people refer to the Refuge’s 1.4 million acre coastal plain as “The Sacred Place Where Life Begins.”

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A Russian tanker has travelled through the northern sea route in record speed and without an icebreaker escort for the first time, highlighting how climate change is opening up the high Arctic. The $300m Christophe de Margerie carried a cargo of liquefied natural gas (LNG) from Hammerfest in Norway to Boryeong in South Korea in 22 days, about 30% quicker than the conventional southern shipping route through the Suez Canal.

Rising Arctic temperatures are boosting commercial shipping in the region, worrying environmentalists.

"Nobody needs Arctic oil. Most of the world understands that, but Trump and Hilcorp just don't get it. The Arctic has largely been off limits to dangerous oil drilling, and it has to stay that way."

Scientists have located two fresh craters formed on Yamal peninsula this year, with the latest exploding on 28 June with the eruption picked up by new seismic sensors specifically designed to monitor such events, The Siberian Times can disclose.

The Science Team of the Canadian Research Icebreaker CCGS Amundsen has cancelled the first leg of the 2017 Expedition due to complications associated with the southward motion of hazardous Arctic sea ice, caused by climate change.

Three men vanished in 1897. But 33 years later, Arctic explorers found their undeveloped film.

Millions of wind turbines proposed to power Arctic ice-making

Report prompts warnings that the polar region is 'unravelling'. By Jeff Tollefson.

On current trends, the Arctic will be ice-free in summer by 2040.