Permafrost thaw is one of the world’s most pressing climate problems, already disrupting lifestyles, livelihoods, economies, and ecosystems in the north, and threatening to spill beyond the boundaries of the Arctic as our planet continues to warm.

New research is causing scientists to rethink how polynyas—massive openings in the sea ice—are formed

A sheet of ice the size of the iconic lake on the New York-Vermont-Quebec border or the city of Los Angeles rapidly separated itself from the Brunt Ice Shelf on Antarctica last week.

Newswise — Freshwater is accumulating in the Arctic Ocean.

Every day, the Arctic slips further into an unstable state. The latest sign: A Russian icebreaker and liquid natural gas ship have traversed the Northern Sea Route in February for the first time due to exceptionally low and weak sea ice cover.

Scientists taking sediment samples found animals nobody thought could survive there.

Wilderness designation is our best tool to protect the coastal plain of the Arctic Refuge

Great power rivalry has come to the Arctic and there’s telling where it will lead.

There's more life than we expected in the Antarctic.

There's more life than we expected in the Antarctic.