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 ...

We look at the worrying trend of carbon emissions from the Arctic tundra, the coldest region in the planet, and the geography of biomes. The extreme weather event is Cyclone Chido that struck ...

The tundra is the coldest of all the biomes. There is very little rain or ... These vast forests store carbon too, but they are threatened by deforestation and climate change.

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." ...