Researchers have discovered permafrost in the northern hemisphere stores massive amounts of natural mercury, a finding with significant implications for human health and ecosystems worldwide.
Earth Sciences
Feb 5, 2018
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1196
Nearly half of the organic carbon stored in soil around the world is contained in Arctic permafrost, which has experienced rapid melting, and that organic material could be converted to greenhouse gases that would exacerbate ...
Environment
Oct 4, 2017
0
205
Frozen in permafrost soil, northern latitudes store almost twice as much carbon as is currently in the atmosphere. Rapid Arctic warming is expected to expose previously frozen soil carbon to microbial decomposition and increase ...
Environment
Sep 7, 2017
0
105
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
0
73
(Phys.org)—An international team of researchers has found that carbon uptake in the Tibetan Plateau may actually offset the carbon that is released as permafrost melts. In their paper published in the journal Nature Geoscience, ...
The Arctic's frozen ground contains large stores of organic carbon that have been locked in the permafrost for thousands of years. As global temperatures rise, that permafrost is starting to melt, raising concerns about the ...
Earth Sciences
Dec 5, 2016
0
400
A University of Alaska Fairbanks-led research project has provided the first modern evidence of a landscape-level permafrost carbon feedback, in which thawing permafrost releases ancient carbon as climate-warming greenhouse ...
Earth Sciences
Aug 22, 2016
0
489
Carbon dioxide emissions from dry and oxygen-rich environments are likely to play a much greater role in controlling future rates of climate change caused by permafrost thaw than rates of methane release from oxygen-poor ...
Environment
Jun 13, 2016
44
53
Findings from one of the first comprehensive field studies by a collaborative team of researchers demonstrate the active layer microbiome of tundra soil was significantly altered after only 1.5 years of experimental warming—a ...
Environment
Feb 22, 2016
2
34
It took Jackie Goordial over 1000 Petri dishes before she was ready to accept what she was seeing. Or not seeing. Goordial, a post-doctoral fellow in the Department of Natural Resource Sciences at McGill University has spent ...
Earth Sciences
Jan 19, 2016
11
172
