TV Schedule

BBC Global Dimming

  2. covelogibbs
  3. related topics
Global dimming is the gradual reduction in the amount of global direct irradiance at the Earth's surface that was observed for several decades after the start of systematic measurements in 1950s. It is thought to have been caused by an increase in particulates such as sulfur aerosols in the atmosphere due to human action. The effect varies by location, but worldwide it has been estimated to be of the order of a 4% reduction over the three decades from 1960–1990. The trend reversed during the past decade. Global dimming has interfered with the hydrological cycle by reducing evaporation and may have caused droughts in some areas. Global dimming also creates a cooling effect that may have partially masked the effect of greenhouse gases on global warming.

http://video.google.com/videoplay?docid=395208797626231...
covelogibbs

4 responses // BBC Global Dimming

  • if we dont turn off America's Next Top Model and start using our brains, then the future has no place for us.
    stephenthomson
  • This video has been thoroughly discredited. It was nice to have the naysayers actually make their arguments public so that knowledgeable people can see how baseless they are. None-the-less a denier will grab on to anything, even the absurd.
    GoAhead
  • http://www.pbs.org/wgbh/nova/sun/
    GoAhead, care to share any of the info discrediting this? Who are the naysayers you're talking about?

    This is showing Global Warming is way worse than anyone thought.

    What am I missing here?
    covelogibbs
  • http://www.realclimate.org/index.php?p=105
    Begin by reading carefully the article from Real Climate

    Keep this thought in mind as you review the article.

    The producers of this "Global Dimming" were not saying the effects were worse for the reason you might assume, they were laying the groundwork for discrediting the models
    GoAhead

Add your response

Login/Registration is required to add a response.