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Thread: Explosion in Antarctic sea ice may signal new ice age, not warming

  1. #1

    Explosion in Antarctic sea ice may signal new ice age, not warming


    Explosion in Antarctic sea ice levels may cause another ice age
    By Chris Ciaccia
    Explosion in Antarctic sea ice levels may cause another ice age | Fox News

    Upside-down "rivers" of warm ocean water may be one of the causes of Antarctica's ice shelves breaking up, leading to a rise in sea levels. But a new study suggests an increase in sea ice may lead to a much more devastating change in the Earth's climate — another ice age.

    Using computer simulations, the research suggests that an increase in sea ice could significantly alter the circulation of the ocean, ultimately leading to a reverse greenhouse effect as carbon dioxide levels in the ocean increase and levels in the air decrease.

    "One key question in the field is still what caused the Earth to periodically cycle in and out of ice ages," University of Chicago professor and the study's co-author, Malte Jansen, said in a statement. "We are pretty confident that the carbon balance between the atmosphere and ocean must have changed, but we don't quite know how or why."...



    ...Jansen pointed out that the Southern Ocean around Antarctica "plays a key role in ocean circulation" due to the deep waters in the region, leading it to have "outsize[d] consequences."

    "What this suggests is that it's a feedback loop," said the study's lead author, Alice Marzocchi. "As the temperature drops, less carbon is released into the atmosphere, which triggers more cooling."

    "What surprised me is how much of this increased storage can be attributed to physical changes alone, with Antarctic sea-ice cover being the key player," Marzocchi added, noting that future study of the ocean and the role it plays in the carbon cycle can help simulate "future environmental change."

    The research has been published in the scientific journal Nature Geoscience.










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    curly sue (10-30-2019)

  3. #2
    Interesting!

  4. #3
    Frozen Chosen A.J.'s Avatar
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    You gotta be kidding me.



  5. #4
    I just hope we arent in for another Polar Vortex. Having experienced -40deg on several occasions, it's damaging, dangerous and painful.

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    Frozen Chosen A.J.'s Avatar
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    Quote Originally Posted by FireBrand View Post
    I just hope we arent in for another Polar Vortex. Having experienced -40deg on several occasions, it's damaging, dangerous and painful.
    You mean a typical Canadian winter???


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    fuego (10-30-2019)

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