Smoke from a Siberian wildfire may have transported enough nitrogen to parts of the Arctic Ocean to amplify a phytoplankton bloom, researchers say.

The new discovery echoes a mission in 1931, when a five-day zeppelin flight sent robots to the stratosphere and redrew the maps of the high Arctic.

Arctic lakes are drying up. A new study offers clues as to why—and what can be done to slow the loss.

Here are two possible forms of regional geoengineering.

The Arctic may be warming four times faster than the rest of the world.

Polar bears are increasingly seeking sustenance in human trash because of melting sea ice and a loss of hunting opportunities. The result is a rise in human-bear conflict – and dead bears.

New findings indicate a causal relationship between spring ozone depletion over the Arctic and weather anomalies.

Fires today are hotter and more destructive, thanks in part to a warming climate.

The Arctic Council was the world’s primary forum for cooperation among the eight Arctic nations and a channel for diplomacy – until Russia launched a war.

Ground is collapsing and massive lakes are draining in a matter of days. Thawing permafrost is having profound effects on the region and its infrastructure.