ScienceDaily: A new analysis of fire activity in Alaska's Yukon Flats finds that so many forest fires are occurring there that the area has become a net exporter of carbon to the atmosphere. This is worrisome, the researchers say, because arctic and subarctic boreal forests like those of the Yukon Flats contain roughly one-third of Earth's terrestrial carbon stores.
The research is reported in the journal Nature Climate Change.
Alaska fire records go back only to 1939, and scientists often assume that present-day...