October 22nd 2019
Research has found Arctic soil has warmed to the point where it releases more carbon in winter than northern plants can absorb during the summer.
The finding means the extensive belt of tundra around the globe — a vast reserve of carbon that dwarfs what's held in the atmosphere — is becoming a source of greenhouse gas emissions responsible for climate change.
"There's a net loss," said Dalhousie University's Jocelyn Egan, one of 75 co-authors of a paper published in Nature Climate Change.
