Monday, April 19, 2010

Iceland Volcano Won't Cool the Planet

From Technology Review published by MIT...

"Advocates of "geoengineering"--proposed approaches to cool the planet to offset the effects of greenhouse gases--point to major volcanic eruptions as evidence that the techniques could work. Very large eruptions, like the one at Mount Pinatube in 1991, actually did cool the planet by injecting sulfates into the upper reaches of the atmosphere, where they circulated for over a year, shading the earth. Such advocates have been hoping that another major eruption would come along that could be studied for clues on how best go about artificially cooling the planet."

Read more here

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