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As permafrost thaws in the future, some portion of this mercury will get released into the environment, with unknown impact to people and our food supplies, said Kevin Schaefer, a scientist with the National Snow and Ice Data Center in Boulder, Colorado, and a co-author of the study. The research
Lead author Kevin Schaefer, of the National Snow and Ice Data Center in Colorado, said 1,700 gigatons of carbon are locked up in permafrost primarily in the U.S., China, Russia and Canada. He called for further studies on the potential climate impact if it's released, saying up to 39 percent of tota
gasestrapped in the soil, adding to the greenhouse effect andamplifying warming, according to the study. The thawundermines buildings and roads, and threatens to drain lakesthat are currently contained by the impermeable frozen soil, thereports author, Kevin Schaefer, told reporters in Doha.
"Permafrost emissions could ultimately account for up to 39per cent of total emissions," said the report's lead author, Kevin Schaefer, of the University of Colorado, who presented it at climate negotiations in Doha, Qatar. "This must be factored in to treaty negotiations expected to replace the
Date: Nov 27, 2012
Category: Sci/Tech
Source: Google
UN: Permafrost Thaw Could Significantly Warm Planet
report's authors say air temperatures in the world's arctic and alpine regions are expected to increase at roughly twice the global rate. These regional greenhouse gas emissions could ultimately account for up to 39 percent of total planet-wide emissions, says lead author Kevin Schaefer, from the
Kevin Schaefer, of the University of Colorado National Snow and Ice Data Center, said 1,700 gigatons of permafrost exist. The lead author on the U.N. report, he warns that that melting could permanently amplify what is already a worrisome threat.
rate of permafrost thaw and the amount of carbon which could be released are Vulnerability of Permafrost Carbon to Climate Change: Implications for the Global Carbon Cycle by Edward Schuur and colleagues, Amount and timing of permafrost carbon release in response to climate warming by Kevin Schaefer
Date: Sep 21, 2012
Source: Google
Melting Permafrost Could Release Greenhouse Gases: NYT
In a February study published in the journal Tellus, the Dispatch said, researchers at the Snow and Ice Data Center (NSIDC), led by scientist Kevin Schaefer, studied the effect that a thawed-out Arctic would have on overall climate health and found that one- to two-thirds of that permafrost will be