Special ships that create clouds by spraying seawater into the air could be the most cost effective way of tackling climate change, new research has found.
The technique, known as marine cloud whitening, would create clouds above the Pacific Ocean that would have a cooling effect by reflecting sunlight away from Earth.
A wind-powered fleet of nearly 2,000 ships would criss-cross the sea, sucking up sea water and spraying it upwards through tall funnels.
‘When you spray saltwater into the air, you create nuclei that cloud condenses around, creating bigger and whiter clouds, thus bouncing more sunlight back into space,’ said David Young from the think-tank that commissioned the study.
The paper by Professor Eric Bickel and Lee Lane looked into the costs of potential climate engineering projects. It was commissioned by the Copenhagen Consensus Centre that advises governments how to spend aid money. Daily Mail, 8 Aug 2009
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