The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...

For millennia, the Arctic tundra has helped stabilize global temperatures by storing carbon in the frozen ground. Wildfires have changed that, according to the latest Arctic Report Card released ...

The Mulgrave Hills are the farthest west extension of the Brooks Range. Arctic tundra, which for thousands of years was a net sink for atmospheric carbon, is now a net emitter, adding to the ...

For millennia, the tundra regions of the Arctic drew in carbon from the atmosphere and locked it in permafrost. That is the case no more, according to an annual report issued on Tuesday by the ...

Arctic tundra, a frozen treeless biome which has stored carbon for thousands of years, has now become a source of heat-trapping greenhouse gases (GHGs) which are the primary drivers of global warming, ...

For thousands of years, the Arctic tundra landscape of shrubs and permafrost, or frozen ground, has acted as a carbon dioxide sink, meaning that the landscape was taking up and storing this gas that ...

After storing carbon dioxide for millennia in frozen soil, the Arctic tundra has now become a source of emissions. “Our observations now show that the Arctic tundra, which is experiencing ...

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 consequences reach across the globe. The Arctic tundra now releases more carbon than it naturally draws down from the sky, as wildfires burn down its trees and permafrost thaw releases potent ...