Boreal forests and Arctic tundra are underlain by millions of square kilometers of permafrost, and scientists are still unsure of how the thawing of this long-frozen soil will affect the climate.

"The most climate-stressed regions all contained permafrost, which is vulnerable to thaw as temperatures rise," researcher Sue Natali said.

For millennia, the Arctic-boreal zone has acted as a critical carbon reservoir, locking away vast amounts of carbon dioxide ...

Boreal ecology is the study of ecosystems in the subarctic (boreal) zone of the Northern hemisphere. These areas are dominated by coniferous forest, generally have permafrost soils, and occur ...

A third of the Arctic is now emitting climate-changing greenhouse gasses after thousands of years of storing them, according ...

Accelerated permafrost thaw in the state has also been observed in recent decades. Siberia presents an interesting case, as the region’s boreal environments represent some of the strongest net sources ...

The frozen ground beneath these "boreal" forests and treeless plains or "tundra" is thawing, fast. That's a problem because ...

Critical CO2 stores held in permafrost are being released as the landscape changes with global heating, a new report shows.

Research is revealing how climate change is driving the Arctic-boreal zone's shift from a carbon sink to a carbon source.

An international team led by Woodwell Climate Research Center found that a third (34 percent) of the Arctic-boreal zone (ABZ)—the treeless tundra, boreal forests, and wetlands that make up Earth ...

Animation of terrestrial CO 2 fluxes in the Arctic-boreal zone by month ... Anna Virkkala, a research scientist at the Permafrost Pathways initiative at Woodwell Climate and lead author of ...