In the northern high latitudes, snow covers the ground during many months every year. Snow is white, which makes it reflect ...

Fires, intensified by climate change, release carbon trapped in soil and plants. More frequent infernos have now transformed the tundra into a net source of carbon dioxide emissions. It’s a ...

31, 2008. Tundra plants absorb atmospheric carbon in the summer, when they use sunlight to photosynthesize, but they emit carbon dioxide in the winter, when the daylight is gone. (Photo provided ...

That has mainly been due to carbon uptake from plants, which regulate atmospheric ... the Arctic are breaking down permafrost across the tundra, in some cases, severely. The Arctic report, for ...

Arctic tundra, which has stored carbon for thousands ... Permafrost is full of carbon that has been locked away by plants over millennia. But last year's permafrost temperatures were the second ...

From Alaska to Siberia, the Arctic is changing so rapidly that there is no "normal" there now, scientists warn. The consequences reach across the globe. The Arctic tundra now releases more carbon ...