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
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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
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Soil respiration is a significant indicator for estimating the terrestrial carbon budget under climate change. It is the second-largest source of carbon emissions to the atmosphere from the terrestrial ecosystem on a global ...
Earth Sciences
Sep 25, 2020
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21
The Arctic is warming faster than any other region on the planet. As a result, permafrost that is thousands of years old is now being lost to erosion. As measurements gathered on the Lena River by AWI experts show, the scale ...
Earth Sciences
Sep 16, 2020
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Microbial communities in Arctic permafrost changed drastically at the end of the last ice age—and the shift could happen again due to modern climate change, according to a new study by University of Alberta scientists.
Earth Sciences
Aug 28, 2020
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What nitrogen is getting up to in permafrost soils may be much more interesting than researchers have long believed—with potentially significant consequences for our management of climate change.
Earth Sciences
Jun 12, 2020
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Near the top of the world, plants grow on soil that rests atop permafrost, or permanently frozen soil. Just like plants in warmer regions, these need nitrogen to grow. The unique aspects of the permafrost environment create ...
Environment
Feb 4, 2019
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7
At the top of the world, once permanently frozen soil holds vast pools of carbon. Microbes could free that carbon under the right conditions. To predict how the Arctic will respond to seasonal freeze-thaw-growing conditions, ...
Earth Sciences
Dec 12, 2018
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4
Damp cellar. Old socks. Rotten eggs. Steamy cow dung.
Earth Sciences
Nov 27, 2018
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The thawing permafrost soils in the Arctic regions might contribute to the greenhouse effect in two respects: On the one hand, rising temperatures lead to higher microbial methane production close to the surface. On the other ...
Environment
Jul 19, 2017
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