As permafrost melts, prehistoric ooze could speed up global warming
Scientists warn that if exposed, microbes in organic matter could emit mass quantities of greenhouse gases into the air.
Photo: Wikimedia Commons
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As permafrost melts, prehistoric ooze could speed up global warmingScientists warn that if exposed, microbes in organic matter could emit mass quantities of greenhouse gases into the air.By Stephanie RogersTue, Jul 07 2009 at 5:13 PM EST
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Photo: Wikimedia Commons Under the permafrost in the Arctic tundra, there lies massive amounts of ‘prehistoric ooze’ made up of thousands of years of animal waste and organic matter. That ooze contains greenhouse gases that could lead to a significant increase in global temperatures by the end of this century.
Researchers say the amount of carbon stored in frozen soils in the Arctic is actually double previous estimates. As rising temperatures cause the tundra to melt, carbon dioxide and methane will be released into the atmosphere.
“The research shows that the amount of carbon stored in soils surrounding the North Pole has been hugely underestimated,” says Dr. Pep Candell, executive director of the Global Carbon Project at Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO).
“Using the new carbon pool estimates from this research, permafrost degradation could account for the entire upper range of carbon-climate feedbacks currently estimated by climate models.”
Russian scientist Sergei Zimov explains that microbes that have been dormant under the permafrost for thousands of years will become active once again and emit carbon dioxide and methane gases as a byproduct in huge quantities.
"The deposits of organic matter in these soils are so gigantic that they dwarf global oil reserves," says Zimov. "Permafrost areas hold 500 billion tons of carbon, which can fast turn into greenhouse gases. If you don't stop emissions of greenhouse gases into the atmosphere ... the Kyoto Protocol will seem like childish prattle."
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Comments
Paul Revere
07/08/2009 16:12 PM
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Beem
07/08/2009 11:48 AM
So we're having climate change, there is a lot of negative "alarmist" views about it, and denial too, but as we see rock formations (and ice records), the changes recorded show that things happen suddenly, but after the change, conditions are different, but still there are conditions. I think the biggest problem with climate change is that people dont like change. So there is likely sea level rise, perhaps followed by ice age and sea level drop, mass extinctions etc etc but there still will be.... More
Brad Arnold
07/07/2009 23:30 PM
Thirty percent of the Earth's surface is land. Twenty percent of the land is permafrost. There is over a trillion tons of carbon frozen and buried in the land permafrost. More than half the land covered by the topmost layer of permafrost will probably thaw by 2050. Much more permafrost is under the ocean, for instance an area six times the size of Germany containing about 540 billion tons of carbon off the coast of Siberia. That submarine permafrost is perilously close to thawing. Three to 12.... More Add your commentSign in with one of these accounts or just add your comment below. |
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