David Keith: A Surprising Idea for "Solving" Climate Change
Environmental scientist David Keith talks about a cheap, effective, shocking solution to climate change: What if we injected a huge cloud of ash into the atmosphere, to deflect sunlight and heat? As an emergency measure to slow a melting ice cap, it could work. Keith discusses why it's a good idea, why it's a terrible one—and who, despite the cost, might be tempted to use it.
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TED, source for this addition titled David Keith: A Surprising Idea for "Solving" Climate Change, was listed in green media by Earth & Economy on March 3, 2008.
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Block out the sun?
Sun, Jun 22 —Well, I am not thrilled about blocking out the sun. Our food would not grow and may trigger another ice age depending on the lasting effects of the ash in the ozone.