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Thread: Global warming science in 12 minutes.

  1. #1 Global warming science in 12 minutes. 
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    This is another in the Potholer54 series. A neat and concise summary of the science of CO2 in the atmosphere. And if what's here isn't enough for you, there are links to others of his videos dealing with further details.

    The evidence for climate change WITHOUT computer models or the IPCC - YouTube


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    Forum Freshman overthelight's Avatar
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    It is like, the mascle of a man would be getting strength sometimes or weakness by a time in his lifetime.


    Science gives people the hope always.
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    Malignant Pimple shlunka's Avatar
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    BULLCRAP! It's 16 minutes and 3 seconds.
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    Quote Originally Posted by overthelight View Post
    It is like, the mascle of a man would be getting strength sometimes or weakness by a time in his lifetime.
    I couldn't have said it better.

    I just wish I knew what "it" was.
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    Quote Originally Posted by shlunka View Post
    BULLCRAP! It's 16 minutes and 3 seconds.
    I noticed that, too. Adelady swindled us.
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    Forum Ph.D. stander-j's Avatar
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    A couple of trivial questions:

    Is it that C02 does not block higher wavelengths in any way or, as I presume, is it that lower wavelengths are blocked more efficiently?

    If the latter, would there be a level of concentration where C02 would actually start to produce a cooling effect - as higher wavelengths can no longer effectively penetrate the atmosphere?
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    Quote Originally Posted by stander-j View Post
    A couple of trivial questions:

    Is it that C02 does not block higher wavelengths in any way or, as I presume, is it that lower wavelengths are blocked more efficiently?
    CO2 gas is completely transparent to short wave radiation, but blocks radiation for three longer waved bands.

    The cooling effect does happen in the stratosphere, it fact this is one of the observed "smoking guns" that greenhouse changes are responsible for the current warming near the surface.
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    Forum Ph.D. stander-j's Avatar
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    Quote Originally Posted by Lynx_Fox View Post
    CO2 gas is completely transparent to short wave radiation, but blocks radiation for three longer waved bands.

    The cooling effect does happen in the stratosphere, it fact this is one of the observed "smoking guns" that greenhouse changes are responsible for the current warming near the surface.
    Stratospheric cooling is something I had not heard of, thanks - 'twas a google worth more than its weight in keystrokes!

    If I understand correctly, no matter the amount of C02 in the atmosphere, it will never affect the amount of short wave radiation that passes through - but there would be more cooling in the Stratosphere, as Troposhperic C02 absorbs Infrared radiation before Stratospheric C02, and therefore less Infrared radiation reaches the Stratosphere.
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    This was an excellent video...helped a lot with a study I am working on. I tend to get bogged down and forget the bigger picture.
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