Permafrost melting

Discussion in 'Environment' started by Chris, Jul 5, 2009.

  1. Chris
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    Chris Gold Member

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    SINGAPORE, July 1 (Reuters) - The amount of carbon locked away in frozen soils in the far Northern Hemisphere is double previous estimates and rapid melting could accelerate global warming, a study released on Wednesday says.

    Large areas of northern Russia, Canada, Nordic countries and the U.S. state of Alaska have deep layers of frozen soil near the surface called permafrost.

    Global warming has already triggered rapid melting of the permafrost in some areas, releasing powerful greenhouse gases carbon dioxide and methane.

    As the world gets warmer, more of these gases are predicted to be released and could trigger a tipping point in which huge amounts of the gases flood the atmosphere, rapidly driving up temperatures, scientists say.

    "Massive amounts of carbon stored in frozen soils at high latitudes are increasingly vulnerable to exposure to the atmosphere," said Pep Canadell, executive director of the Global Carbon Project at Australia's state-funded Commonwealth Scientific and Industrial Research Organisation.

    "The research shows that the amount of carbon stored in soils surrounding the North Pole has been hugely underestimated."

    The study is published in the latest issue of Global Biogeochemical Cycle.

    Canadell said a four-year study of the latest research on permafrost, data from new drilling projects as well as the release of previously unpublished data from the Russian Academy of Sciences had led to a rethink of carbon levels.

    "Projections show that almost all near-surface permafrost will disappear by the end of this century exposing large carbon stores to decomposition and release of greenhouse gases," he said in a statement.

    He said if only 10 per cent of the permafrost melted, this could lead to the release of an additional 80 parts per million of carbon dioxide equivalent into the atmosphere. This would equate to about 0.7 degrees Celsius of global warming.

    Permafrost melting a growing climate threat -study | Reuters
     
  2. eots
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    eots no fly list

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    Thunder shook loose hail
    on the outhouse again
    today I bumped into you again
    I have no idea what you want
    but there was something I meant to say

    As the day stops dead
    at the place where we're lost
    I will drug you and fuck you
    on the permafrost

    There's not much that I miss
    I'm far too forgetful for that
    sugar's sweet some of the time
    but it's hard to keep some things in mind
    on the permafrost..
    Magazine - Permafrost LYRICS
     
    Last edited: Jul 5, 2009
  3. Oddball
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    Oddball BANNED Supporting Member

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    [​IMG]

    Gloooom, despair and agony on me *moan*

    Deep dark depression, excessive misery *groan*

    If it weren't for bad luck, I'd have no luck at all *wail*

    Gloooom, despair and agony on me
     
  4. elvis
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    elvis BANNED Supporting Member

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    chrissy the mental midget's brain is melting.
     
  5. eots
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    eots no fly list

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    [ame=http://www.youtube.com/watch?v=qfV_ENR5IZE]YouTube - Wizard of Oz 1- Wicked Witch Melting[/ame]
     

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