(11-26) 04:00 PST London -- If there were some kind of panic button to stop global warming, what would it look like? How about billions of tiny mirrors, launched into orbit to deflect solar rays away from Earth? Or big, fluffy clouds, artificially whitened so they reflect more sunlight back into space? Or maybe mechanical trees, ugly but effective at sucking carbon dioxide from the air along busy highways? Outlandish as some of these proposals may seem, scientists and engineers are paying...
Full Story: San Fransisco Chronicle
