Fires, intensified by climate change, release carbon trapped in soil and plants. More frequent infernos have now transformed ...

The news that the frigid Arctic tundra ringing the polar region has switched from being a net absorber, or "sink," of ...

For millennia, the tundra regions of the Arctic drew in carbon from the atmosphere and locked it in permafrost. That is the ...

This is yet one more sign, predicted by scientists, of the consequences of inadequately reducing fossil fuel pollution,” said ...

For millennia, Arctic ecosystems have stored more carbon dioxide than they release, but that has shifted as warming ...

Increasingly frequent and severe wildfires have become a yearly concern for many Arctic communities, and a chapter of a new U ...

The Arctic tundra has historically helped reduce global emissions. But rising temperatures and wildfires in the region are ...

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.

Wildfires and thawing permafrost are causing the region to release more carbon dioxide than its plants remove, probably for ...

After locking carbon dioxide in its frozen soil for millennia, the Arctic tundra is undergoing a dramatic transformation, ...

NOAA scientists and affiliated researchers have documented profound change in the frozen north as U.S. government science ...

The Arctic experienced its second-hottest year on record, according to a NOAA report. The Arctic tundra has become a source ...