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

Now, as the Arctic climate warms at rates up to four times faster than the planet's average, snow is disappearing sooner in ...

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

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

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

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