Scientists: Pollution could combat global warming

CNN.com: "NAIROBI, Kenya (AP) -- Air pollution may be just the thing to fight global warming, some scientists say.

Prominent scientists, among them a Nobel laureate, said a layer of pollution deliberately spewed into the atmosphere could act as a 'shade' from the sun's rays and help cool the planet.

Reaction to the proposal here at the annual U.N. conference on climate change is a mix of caution, curiosity and some resignation to such 'massive and drastic' operations, as the chief U.N. climatologist describes them."