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

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

The Arctic tundra has historically helped reduce global emissions. But rising temperatures and wildfires in the region are changing that, scientists say.

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

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

Arctic tundra is releasing greenhouse gases into the atmosphere as hotter temperatures melt frozen ground and wildfires ...

The shift from storing carbon dioxide to releasing it could have widespread implications for climate change, according to ...

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

The transition of the Arctic from a carbon sink to a carbon source is one of the dramatic changes in the Arctic that are ...

The Arctic tundra is no longer the carbon sink it once was. "The tundra, which is experiencing warming and increased wildfire ...

Scientists’ annual report card on the polar region finds that its vast tundra is releasing more CO2 than it stores, a ...

NOAA scientists have documented profound change in the frozen north as U.S. government science itself faces an uncertain ...