Reindeer herders in Russia's Arctic have discovered what scientists say is the first-ever cave bear carcass with soft tissues intact in the region's rapidly thawing permafrost.

A recent beaver catch in Baker Lake, along with this summer’s earlier beaver sighting near Kugluktuk, more than 1,000 kilometres northwest of Baker Lake, have some wondering whether beavers are expanding their range into Nunavut.

In the vast plains that blanket much of northern Russia a once-unthinkable business is taking hold – soybean farming. It’s the result of years of increasing global temperatures, which are thawing the permafrost and turning the land into fertile soil.

The multinational company that operates the Red Dog Mine in Northwest Alaska says that thawing permafrost linked to global warming has forced it to spend nearly $20 million to manage its water storage and discharge.

The glacier over Mine 7 in Adventdalen on Svalbard is thawing in the summer heat. This has resulted in a severe flood with thousands of liters of water.

Giant hole, thought to have been caused by methane release, is biggest of its kind discovered in Russia’s Yamal peninsula. It is the 17th crater of its kind to be found and documented in Yamal since 2014.

Permafrost is becoming exposed in Western Alaska, in areas where the landscape transitions to tundra.

Today, the fault measures around a kilometer in length, 800 meters in width and 100 meters in depth, making it the largest permafrost thermokarst sinkhole in the world. Its shape is reminiscent of a gigantic mollusc with a tail.

Permafrost thaw is causing tundra to sink and pool water.

In Finnmark and parts of Troms, good and favorite berry bogs have cracked and disappeared. The reason is warmer and more humid climate. "Almost impossible to reverse," says a bog researcher.

After days with record heat at Svalbard, the penetration of water from the above melting glacier is now flooding Norway’s only operating coal mine that supplies the country’s only coal-power plant.

The rate of coastal erosion seems to be speeding up near Cape Blossom.

"If we can protect the shoreline for another 30 years, it will give us time to move inland because we all can't up and leave tomorrow," Mayor Elias said.

Worrying videos and pictures show how the pristine polar region of northern Yakutia is ablaze.

Most of the blazes are in a region that saw possibly the hottest-ever temperature above the Arctic Circle this month.

Thawing is impacting both above ground and underground fuel storage. They have started on a plan to empty the fuel tank and relocate it or fix the foundation.

A prolonged heatwave in Siberia is “undoubtedly alarming”, climate scientists have said. The freak temperatures have been linked to wildfires, a huge oil spill and a plague of tree-eating moths.

Toxic fuel from 21,000 ton leak reaches pristine lake, bypassing floating booms, as rivers of diesel pollution cover-up is exposed.

President Vladimir Putin declared a state of emergency last Wednesday, several days after 21,000 metric tons of diesel leaked from a collapsed fuel tank outside the city of Norilsk.The pollution now risks running north into the Arctic Ocean.

The exact reason of the leak is yet to be established, but a statement from Norilsk Nickel company, which operates the site suggests it could have been caused - worryingly - by collapsing permafrost.