Picture 500 million cars stacked in rows. That's how much carbon—about 1,000 petagrams, or one billion metric tons—is locked away in Arctic permafrost.
Earth Sciences
Jun 15, 2020
1
764
Some Alaskan soils harbor elevated concentrations of heavy metals that can harm human health, but critical data gaps impede understanding of exposure risks for Arctic communities. Clarice Perryman of the University of New ...
Environment
Jun 3, 2020
0
95
Abrupt thawing of permafrost will double previous estimates of potential carbon emissions from permafrost thaw in the Arctic, and is already rapidly changing the landscape and ecology of the circumpolar north, a new CU Boulder-led ...
Earth Sciences
Feb 3, 2020
4
7606
Permafrost is ground that remains frozen throughout the year; it covers nearly a quarter of Northern Hemisphere land. The frozen state of permafrost enables it to store large amounts of carbon; about twice as much as in the ...
Earth Sciences
Jan 8, 2020
6
350
Arctic regions have captured and stored carbon for tens of thousands of years, but a new study shows winter carbon emissions from the Arctic may now be putting more carbon into the atmosphere than is taken up by plants each ...
Environment
Oct 22, 2019
14
228
For years, scientists have pointed to warming permafrost in the Arctic tundra as a source for increased carbon in the atmosphere; as this soil warms, it releases greenhouse gases that have long been trapped in frozen ground.
Environment
Jul 3, 2019
0
2
Evidence of historic marine life present in Alaskan permafrost is helping scientists reconstruct ancient changes in the ice cover over the Arctic Ocean.
Earth Sciences
Apr 12, 2019
0
10
The fact is, the planet is getting warmer, and with the temperature increase comes an array of issues.
Earth Sciences
Feb 15, 2019
0
6
The Arctic is warming twice as fast as the rest of the planet, causing the carbon-containing permafrost that has been frozen for tens or hundreds of thousands of years to thaw and release methane into the atmosphere, thereby ...
Earth Sciences
Feb 7, 2019
1
237
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
0
7
