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Re: Ancient permafrost quickly transforms to carbon dioxide upon thaw

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Sam Wormley <swormley1@gmail.com> wrote:
> Ancient permafrost quickly transforms to carbon dioxide upon thaw
>> http://phys.org/news/2015-10-ancient-permafrost-quickly-carbon-dioxide.html
> 
> 
>> Researchers from the U.S. Geological Survey and key academic partners
>> including the University of Colorado Boulder have quantified how
>> rapidly ancient permafrost decomposes upon thawing and how much
>> carbon dioxide is produced in the process.
>>
>> Huge stores of organic carbon in permafrost soils?frozen for hundreds
>> to tens of thousands of years across high northern latitudes
>> worldwide?are currently isolated from the modern day carbon cycle.
>> However, if thawed by changing climate conditions, wildfire, or other
>> disturbances, this massive carbon reservoir could decompose and be
>> emitted as the greenhouse gases carbon dioxide and methane, or be
>> carried as dissolved organic carbon to streams and rivers.
>>
>> "Many scientists worldwide are now investigating the complicated
>> potential end results of thawing permafrost," said Rob Striegl, USGS
>> scientist and study co-author. "There are critical questions to
>> consider, such as: How much of the stored permafrost carbon might
>> thaw in a future climate? Where will it go? And, what are the
>> consequences for our climate and our aquatic ecosystems?"
>>
>> At a newly excavated tunnel operated by the U.S. Army Corps of
>> Engineers near Fairbanks, Alaska, a research team from USGS,
>> CU-Boulder and and Florida State University set out to determine how
>> rapidly the dissolved organic carbon from ancient (about 35,000 years
>> old) "yedoma" soils decomposes upon soil thaw and how much carbon
>> dioxide is produced.
 
Surprise, surprise, no one is interested in this off topic cut and paste. 

-- 
Jim Pennino

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Re: Ancient permafrost quickly transforms to carbon dioxide upon thaw jimp@specsol.spam.sux.com - 2015-11-10 22:12 +0000

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