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April 21, 2006



My understanding is that greenhouse gases contribute to cloud cover?

Hello Gwen -I'm not an atmospheric specialist but that's my understanding also. Greenhouse gases change the composition and balance of our atmosphere but are just one part in cloud formation. If anyone reading this can add to the story please do! -Steve

Gil Tennant

There's a number of factors at work, clouds being one of them, which ultimately play a role in the greenhouse effect. Cloud cover affects greenhouse warming by both reducing the amount of solar radiation reaching the earth's surface and by reducing the amount of radiation energy emitted into space.

Scientists use the term "albedo" to define the percentage of solar energy reflected back by a surface. Understanding local, regional, and global albedo effects is critical to predicting global climate change.



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Steve Bevan


Amateur astronomer, Steve Bevan, a York Region Media Group distribution representative, spends far too much time looking up, except when he is driving. Email Steve
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