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Latest Arctic methane release Stories

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2010-03-05 09:30:00

Thawing by climate change of subsea layer of permafrost may release stores of underlying, seabed methane A section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting of the powerful greenhouse gas, according to the findings of an international research team led by University of Alaska Fairbanks scientists Natalia Shakhova and Igor Semiletov. The research results, published in the March 5 edition of the journal Science,...

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2009-10-15 07:38:56

New study shows that Arctic has potential to alter Earth's climate In a new study in the journal Ecological Monographs, ecologists estimate that Arctic lands and oceans are responsible for up to 25 percent of the global net sink of atmospheric carbon dioxide. Under current predictions of global warming, this Arctic sink could be diminished or reversed, potentially accelerating predicted rates of climate change. In their review paper, David McGuire of the U.S. Geological Survey and the...

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2009-08-31 10:35:00

Researchers are warning of a slow seepage of methane gas from under the Arctic permafrost, which could be very dangerous to the Earth's future climate. "On a calm day, you can see 20 or more 'seeps' out across this lake," Canadian researcher Rob Bowen told the Associated Press from his boat on the Mackenzie River Delta. Bowen said it is essentially pure methane bubbling up from the surface, which spells trouble for the earth's climate, experts say. Temperatures in the Arctic have increased by...

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2009-08-19 07:15:00

A research team is claiming to have evidence that shows methane is escaping from the Arctic sea bed. The team, which conducted research from the sea bed off Norway, found more than 250 plumes of methane bubbles rising from the sea floor. As temperatures in the region rise, the sea bed grows warmer, allowing frozen water crystals to break down and release methane. According to the team's report, which appears in Geophysical Research Letters, detected the bubbles using sonar and tested for...

2009-04-24 09:56:25

An analysis of ancient Greenland ice suggests a spike in the greenhouse gas methane about 11,600 years ago originated from wetlands rather than the ocean floor or from permafrost, a finding that is good news according to the University of Colorado at Boulder scientist who led the study.Methane bound up in ocean sediments and permafrost, called methane clathrate, has been a concern to scientists because of its huge volume, greenhouse gas potency and potential for release during periods of...

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2009-04-24 06:15:00

According to scientists, Greenland's icesheet has revealed a store of methane that appears to be more stable that previously thought, easing tensions over a rapid rise in global temperatures. Vast amounts of methane, a gas that is 25 times more powerful than carbon dioxide (CO2) at trapping heat within the atmosphere, is trapped within the permafrost in the far northern hemisphere, and in seabed deposits called clathrates. Scientists have feared that the release of the clathrate reservoir...

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2008-06-10 14:35:00

The rate of climate warming over northern Alaska, Canada, and Russia could more than triple during periods of rapid sea ice loss, according to a new study led by the National Center for Atmospheric Research (NCAR). The findings raise concerns about the thawing of permafrost, or permanently frozen soil, and the potential consequences for sensitive ecosystems, human infrastructure, and the release of additional greenhouse gases."Our study suggests that, if sea-ice continues to contract rapidly...

2006-06-15 13:40:00

By Deborah Zabarenko WASHINGTON (Reuters) - Ancient roots and bones locked in long-frozen soil in Siberia are starting to thaw, and have the potential to unleash billions of tons of carbon and accelerate global warming, scientists said on Thursday. This vast carbon reservoir, contained in permafrost soil in northeastern Siberia, contains about 75 times more carbon than the amount released into the atmosphere each year by the burning of fossil fuels, the researchers said in a statement....


Word of the Day
lambent
  • Licking.
  • Hence Running along or over a surface, as if in the act of licking; flowing over or along; lapping or bathing; softly bright; gleaming.
This word comes the Latin 'lambere,' to lick.
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