Permafrost thaw could emit substantial carbon (C) into the atmosphere, and possibly trigger a positive feedback to climate warming. As the engine of biogeochemical cycling, soil microorganisms exert a critical role in mediating ...
Earth Sciences
Nov 20, 2020
4
12
Arctic tundra, a unique ecosystem characterized by permafrost, contributes to approximately 45% of all Arctic methane sources and therefore plays an important role in global carbon cycle. Arctic region is warming faster than ...
Environment
Nov 9, 2020
0
7
Sea floor sediments of the Arctic Ocean can help scientists understand how permafrost responds to climate warming. A multidisciplinary team from Stockholm University has found evidence of past permafrost thawing during climate ...
Earth Sciences
Oct 16, 2020
0
314
When permafrost thaws due to global warming, not only the greenhouse gases known to all, but also organic compounds are released from the soil. They may have a significant impact on climate change.
Environment
Oct 14, 2020
0
5
As the permafrost thaws, the topography of the Arctic will alter dramatically, according to an international study headed by Finnish geographers. The study, which covered the entire area of permafrost in the Arctic, found ...
Earth Sciences
Oct 9, 2020
1
86
On the banks of the River Kolyma, deep into the Arctic circle in north-east Siberia, lies a gently rusting Soviet-era tank. It doesn't look out of place here. After all, just down the river is the hull of a half-sunken ship ...
Environment
Sep 7, 2020
1
14
Alaska is getting wetter. A new study spells out what that means for the permafrost that underlies about 85% of the state, and the consequences for Earth's global climate.
Environment
Jul 24, 2020
23
1371
The Arctic Circle became unbelievably hot on June 20. In the Russian community of Verkhoyansk, temperatures topped 38C, marking what may be the highest air temperature ever recorded within the Arctic.
Environment
Jul 24, 2020
0
222
New research from a team at Northern Arizona University suggests that subsidence, gradually sinking terrain caused by the loss of ice and soil mass in permafrost, is causing deeper thaw than previously thought and making ...
Earth Sciences
Jun 17, 2020
0
714
Melting of ice in permafrost ground leads to processes of change in the landscape—thermokarst. This may cause faster thawing of the permafrost.
Earth Sciences
May 26, 2020
8
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