The Arctic tundra is now emitting more carbon dioxide than it absorbs, according to the latest Arctic Report Card released by the US National Oceanic and Atmospheric Administration (NOAA).

The study, published in the peer-reviewed journal Nature Climate Change, said the change appeared to have taken place in “many tundra regions” and called it a “noteworthy shift in carbon ...

After locking carbon dioxide in its frozen soil for millennia, the Arctic tundra is undergoing a dramatic transformation, driven by frequent wildfires that are turning it into a net source of ...

The study, published in the peer-reviewed journal Nature Climate Change, said the change appeared to have taken place in "many tundra regions" and called it a "noteworthy shift in carbon dynamics." ...

The study published in academic journal Nature Climate Change suggests many tundra regions may have started to release more carbon dioxide than they absorb, calling it a “noteworthy shift in ...