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Thread: Northwest Passage

  1. #1 Northwest Passage 
    Time Lord
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    Now connecting ports of Europe and E. North America to those of W. North America and the Far East.

    Lanes expected to remain open throughout August, September, and most of October.

    Icebreaker not required.

    Vessels may not enter or navigate Canadian Internal Waters ("the Passages") without approval of Canada Border Services Agency.



    What do non-Canadians think about this development? Predictions?


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  3. #2  
    Universal Mind John Galt's Avatar
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    Numerous settlements are springing up or expanding along the Arctic coast in Russia. The opening of the Arctic to easy sea travel will be one of the few positives to come out of global warming.


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  4. #3  
    Forum Sophomore andre's Avatar
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    But the decline of the sea ice is not caused by global warming.

    It's the wind

    http://www.nasa.gov/vision/earth/loo...-20071001.html
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  5. #4  
    Moderator Moderator
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    Quote Originally Posted by andre
    But the decline of the sea ice is not caused by global warming.

    It's the wind

    http://www.nasa.gov/vision/earth/loo...-20071001.html
    Too bad your article doesn't say that.


    you'd be right of course:
    -if temperature, pressure and wind weren't somehow related :-)
    -if significant increased temperature above the melting points measured both inland and along the coast didn't melt any of the perennial ice :-)

    But of course basic atmospheric physics, as bothersome as they are, assure us neither of these assumptions is valid. So going down the road of false dichotomies is a dead end.
    --

    As for the actual thread we probably won't break last year's record loss of ice cover--but it won't be by much.

    If you believe such things, Hudson must be watching.
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  6. #5  
    Forum Isotope Bunbury's Avatar
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    As Lynx Fox wrote, nowhere does the NASA article say that the decline of the sea ice is not caused by global warming.

    The article does say that thinner ice
    is more easily compressed and responds more quickly to being pushed out of the Arctic by winds. Those thinner seasonal ice conditions facilitated the ice loss, leading to this year's record low amount of total Arctic sea ice.
    So why is the ice thinner than in the past?
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