Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are fundamentally altering the ecosystem and how it operates. One recent turning ...

The Arctic tundra, a critical “carbon sink” for thousands of years, is now releasing more of the greenhouse gas than it takes in, scientists have announced. Carbon sinks like the Arctic play crucial ...

The Arctic can feel like a far-off place, disconnected from daily life if you aren’t one of the 4 million people who live there. Yet, the changes underway in the Arctic as temperatures rise can ...

The last nine years have been the warmest ever recorded in the Arctic Circle, and this year saw a number of new milestones in the region: It was the rainiest summer on record, and plant life bloomed ...

From giant holes in Siberia to legions of beavers in Alaska, the Arctic is changing rapidly and accelerating the climate ...

Authors: Twila A. Moon, University of Colorado Boulder; Matthew L. Druckenmiller, University of Colorado Boulder, and Rick Thoman, University of Alaska Fairbanks The Arctic can feel like a far-off ...

The boreal forest, covering much of Canada and Alaska, and the treeless shrublands to the north of the forest region, may be among the worst impacted by climate change over the next 500 years, ...