28 Jan '15, 2am

Scientists call for research on geoengineering scheme to block sunlight [5 yrs ago]

The idea goes something like this: nations would send megatons of light-scattering aerosol particles into the globe's upper atmosphere, significantly reducing sunlight reaching the earth and thereby immediately cooling the Earth. While the idea may sound like science-fiction—or desperate, depending on your opinion—researchers writing in Science say that it may be one of the best ways to lower the Earth's temperature. They argue that international research and field testing of the idea, known as solar-radiation management (SRM), should begin immediately. "Solar-radiation management may be the only human response that can fend off rapid and high-consequence climate change impacts. The risks of not doing research outweigh the risks of doing it," says co-author David Keith, director of the Institute for Sustainable Energy, Environment and Economy's energy and environmental sys...

Full article: http://news.mongabay.com/2010/0127-hance-srm.html?tw!ttr=yes

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