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Climate Clues Sunlight Controls The Fate Of Carbon Released

Climate Clues: Sunlight Controls The Fate Of Carbon Released From Thawing Arctic Permafrost

Bernie DeGroat, University of Michigan Just how much Arctic permafrost will thaw in the future and how fast heat-trapping carbon dioxide will be released from those warming soils is a topic of lively debate among climate scientists. To...

Latest Permafrost Stories

Researchers Find Cooling Effect In Warming Arctic lakes
2014-08-07 03:47:42

University of Minnesota Scientists have known for a while that warming global temperatures are causing Arctic lakes to release methane, a potent greenhouse gas that leads to even more warming. In a new study published in the journal Nature, a team of researchers including U of M researcher Jacques Finlay, found that Siberian lakes have actually pulled more greenhouse gasses from the atmosphere than they have released into it since the last Ice Age, causing an overall slight cooling...

sea ice off alaska
2014-07-31 03:00:56

Hannah Hickey, University of Washington As the climate warms and sea ice retreats, the North is changing. An ice-covered expanse now has a season of increasingly open water that is predicted to extend across the whole Arctic Ocean before the middle of this century. Storms thus have the potential to create Arctic swell – huge waves that could add a new and unpredictable element to the region. A University of Washington researcher made the first study of waves in the middle of the...

Arctic Lakes Soak Up More Greenhouse Gases Than They Emit: Study
2014-07-18 03:19:15

University of Alaska Fairbanks New University of Alaska Fairbanks research indicates that arctic thermokarst lakes stabilize climate change by storing more greenhouse gases than they emit into the atmosphere. Countering a widely-held view that thawing permafrost accelerates atmospheric warming, a study published this week in the scientific journal Nature suggests arctic thermokarst lakes are 'net climate coolers' when observed over longer, millennial, time scales. "Until now, we've...

Siberia Yamal Peninsula
2014-07-17 10:01:06

Joshua Garrett for redOrbit.com - Your Universe Online What could cause an 80 meter hole to form somewhere in northern Siberia? A meteorite strike? Aliens? Cthulhu? Researchers all over the world are scratching their heads over this one, as no one seems to have an answer they are 100 percent sure of. Reported by the Siberian Times, this giant hole of unknown depth appeared rather suddenly in the Yamal Peninsula, which is said to translate as “end of the world,” giving the whole...

Twelvemile Lake permafrost
2014-06-11 06:47:04

April Flowers for redOrbit.com - Your Universe Online Most studies on Arctic permafrost are harbingers of doom. As the sea ice melts, the permafrost is being affected, and releasing large amounts of greenhouse gases such as carbon and methane. These gases will accelerate the process of global warming, creating a vicious cycle. A new study from the US Geological Survey and McGill University, published in Geophysical Research Letters, has revealed a surprise in permafrost research....

Permafrost Thawing Could Accelerate Global Warming
2014-04-08 15:41:51

Kathleen Haughney, Florida State University A team of researchers lead by Florida State University have found new evidence that permafrost thawing is releasing large quantities of greenhouse gases into the atmosphere via plants, which could accelerate warming trends. The research is featured in the newest edition of the Proceedings of the National Academy of Sciences. “We’ve known for a while now that permafrost is thawing,” said Suzanne Hodgkins, the lead author on the paper...

Moss Still Lives After 1500 Years Buried In Antarctic Ice
2014-03-17 14:57:18

Brett Smith for redOrbit.com - Your Universe Online British researchers who typically study polar moss samples because they provide indications of past climate conditions have found that Antarctic moss can survive trapped under ice for over 1,500 years. While some plant material has been brought back to life after 20 years of being frozen, only microbes have been shown to be capable of thousand-year feats of revival; that is until now. "These mosses were basically in a very long-term...

Climate Change Sentinels In The Arctic
2014-02-15 04:47:25

Brett Smith for redOrbit.com - Your Universe Online Being particularly sensitive to carbon monoxide and methane, canaries were often used by miners as sentinels to determine if the toxic mine-related gases were building up to dangerous levels. Speaking this week at the annual meeting of the American Association for the Advancement of Science in Chicago, oceanographer Sue Moore said walruses, polar bears and seals can be looked at in much the same way, in that well-being of these Arctic...

Early Warning System Needed In A World With Changing Climates
2013-12-04 12:31:23

Lee Rannals for redOrbit.com - Your Universe Online The National Research Council says that even gradual climate change can have abrupt impacts in human infrastructure and ecosystems if critical thresholds are crossed, so an early warning system needs to be developed now, before its too late. The federal report calls for the development of an early warning system that could help anticipate sudden changes and emerging impacts. "Research has helped us begin to distinguish more imminent...

Arctic Seafloor Releases Double Previous Estimates Of Methane
2013-11-26 07:19:53

University of Alaska Fairbanks The seafloor off the coast of Northern Siberia is releasing more than twice the amount of methane as previously estimated, according to new research results published in the Nov. 24 edition of the journal Nature Geoscience. The East Siberian Arctic Shelf is venting at least 17 teragrams of the methane into the atmosphere each year. A teragram is equal to 1 million tons. “It is now on par with the methane being released from the arctic tundra, which is...


Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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