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.

The wildfires can burrow into rich organic material, such as the vast peatlands that ring the Arctic, and smolder under the snowpack throughout the frigid winter.

The Baldwin Peninsula near Kotzebue has seen a massive increase in beavers over the last two decades, according to new research from the University of Alaska Fairbanks.

The United States’ northernmost city plummeted to a bone-chilling minus 20 degrees Wednesday morning, beating out the previous daily record set in 1973.

Indigenous Nenets reindeer herders say oil and gas operations in the Yamal region - exploration activity that includes hundreds of wells and dozens of trains and tankers - are polluting the environment and harming their animals' health.

Permafrosten på Svalbard kunne gitt dem evig liv. Men nå er historien til hundrevis av hvalfangere i ferd med å tine bort.

Staircases are separating from building and utility poles leaning.

The ground under the new road is developing a sink hole and affecting the foundation of the adjacent house.

Mayor Clyde Ramoth says frozen pipes are a chronic problem due to issues with the initial installation of the above-ground water system. The warming climate isn’t making things any easier.

Residents are lamenting a December without the constant layer of snow that defines Russian winters, when what little light there is typically reflects off the white covering and brightens the days.

Palsmyr is threatened by climate change. At Ferdesmyra in Finnmark, the characteristic ice-filled pals that protrude from the terrain will be gone in a few years.

Severe erosion at the Nome River mouth has cost Rita Hukill and her family most of their land at their campsite at Fort Davis.

Ground settling is causing a wide range of impacts in Noatak, including to the water treatment plant. But are there benchmarks to monitor the changes in the water plant?

Erosion of Russian era graves is a concern because of history with epidemic, and tribal office has to collect and rebury remains.

Noatak site experiencing thawing and subsidence.

Observers seek guidance on causes for road cracks and how to address damage.

This year was one of the warmest and wettest in recorded history, and permafrost thaw is causing the ground at the mass gravesite to sink.