Pumping tiny sulphate particles into the atmosphere to create a sunshield that would keep the planet cool was first suggested as a solution to global warming by Edward Teller, a physicist was best known for his involvement in the development of the hydrogen bomb.
Simone Tilmes of the National Center for Atmospheric Research in Colorado, US, used computer models to see how a sulphate sunshade would affect the ozone layer, which protects us from harmful UV rays. She says it could have "a drastic impact".
Friday, April 25, 2008
'Planetary sunshade' could strip ozone layer by 76%