Can geoengineering put the freeze on global warming?
Monday, March 21, 2011 - 13:30
in Astronomy & Space
Scientists call it "geoengineering," but in plain speak, it means things like this: blasting tons of sulfate particles into the sky to reflect sunlight away from Earth; filling the ocean with iron filings to grow plankton that will suck up carbon; even dimming sunlight with space shades.