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Green House Effect EASY TO UNDERSTAND

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Uploaded by on Jan 25, 2008

This is the way the Greenhouse effect works! Understandable and quick.

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Science & Technology

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  • likes, 39 dislikes

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  • @Boxers0

    It's because solar radiation ( AKA radiant heat ) has a lower wavelength ( 0.2 to 2 microns ) compared to when the earth radiates it back ( 4 to 40 microns with most popular at 10). Greenhouse gases block wavelenghs of mostly 8-14 microns so solar radiation comes in east but it doesn't come out as easy

  • Get informed. Google "climate change"

    .

    Grim climate forecasts now a reality

    .

    Whereas the politics of climate change has been a rollercoaster ride, the message from scientists has remained unchanged.

    .

    Sydney Morning Herald, Australia

    4 March 2011

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  • thank you

  • @Miemietheron

    Soda Teaches explanation does overlook reflected light. But if you can take that as a steady figure the explanation is a good simple approximation (I gave it a thumbs up). Part of the solar radiation is reflected (about 0.4), part is absorbed (about 0.6) for each 1 unit of solar radiation). The absorbed part warms the surface, this creates convection and radiation.

    No simple explanation is ever 100% correct. :)

    The one I've just given is wrong on deeper levels. ;)

  • @wizardoflawz ... and every ecosystem and city on this planet is adapted for a very specific climate, even a tiny amount of snow in, say, LA or Melbourne would shut those cities down, whereas if you get a 40 degree C day in London, then people would die, because the buildings there are not designed to cope with such heat. 10% more rain, you get floods, 10% less rain, you have a drought on your hands.

  • @SodaTeaches Ok what you say is true (Ill take your word for the wavelength.

    BUT didn't you mean to say that because greenhouse gasses block longer wavelengths the solar radiation that came in and readily be reflected and escape...BUT... the earth's black body radiation with longer wavelengths IS absorbed by greenhouse gasses?

    Making this video not 100% correct since it is not sunlight that is reflected but radiation ?

  • If Jon Thm passes through here would somebody please tell him the new Des O' Connor reflex action pyjamas with retractable tarmac baubles is now on sale at Ali's Ironmongers shop, Bramall lane, Sheffield. .

  • as Rumsfield would say, its not the known unknowns, its the unknown unknowns that are truly the scary part of this. no computer can predict the effects down the line of heating, and melting,between different systems. the global system as we know it is like a spinning top, as it begins to get out of balance, as the spin falls apart, it will wildly throw hots and colds into places totally unaccustomed or unprepared for them, in amounts we will not have seen before.,

  • Really cool - I used to not understand it - now I can explain it to my class - thanks a lot for that effort

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