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An artificial space cloud to reduce the amount of the sun's energy reaching the earth by 2% is proposed to stave off some effects of global warming.
From the article:
The global warming effect could trim about $7,000 billion to the global economy if nothing is done about it (check here for details). A University of Arizona professor thinks he has a solution if we don't act fast enough to develop renewable sources of energy. He wants to reduce the temperature on Earth by building a massive space sunshade made of — hold your breath — 20,000 billions of very small spacecraft weighing about a gram and orbiting a million miles above our heads. This plan would cost $100 billion per year and would be deployed over a period of 25 years. Is this a joke?
[Edit - BF - November 5, 2006 3:34 PM] I just noticed that I had failed to include the above quote from the article. Here it is.
