When Cyrus Harris first saw a beaver during a camping trip in the tundra territory in the far northwest of Alaska in 1988, the discovery created a stir in his hometown of Kotzebue. “That made big news ...

Green summer tundra and the rolling Mulgrave Hills in northwestern Alaska's Cape Krusenstern National Monument are seen on July 11, 2011. The Mulgrave Hills are the farthest west extension of the ...

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 ...

Wildfires and thawing permafrost are causing the region to release more carbon dioxide than its plants remove, probably for the first time in thousands of years. By Raymond Zhong For thousands of ...

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 ...

This was the Arctic’s second-hottest year on record, according to a new NOAA report. The tundra has become a source of emissions, rather than a carbon sink, the authors said. The Arctic is heating up ...

The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...

Beavers are taking over the Alaskan tundra, completely transforming its waterways, and accelerating climate change in the Arctic. The changes are so sudden and drastic that they're clearly visible ...

The Western Arctic Caribou Herd, once the biggest in Alaska, is faltering, having fallen from a high of 490,000 animals in 2003 to only 152,000 as of 2023. But to the east, the Porcupine Caribou Herd ...

Satellite images of plants growing around the dens of Arctic foxes add to the evidence that the foxes are “ecosystem engineers” whose activities create habitat for other organisms. Against the harsh ...