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US energy secretary suggest painting roofs white
Speaking in London yesterday, US energy secretary Steven Chu said that painting roofs and pavements white could help to mitigate global warming by reflecting sunlight back into space.
"If that building is air-conditioned, it's going to be a lot cooler, it can use 10 or 15 per cent less electricity," he said. "You also do something in that you change the albedo of the Earth – you make it more reflective. So the sunlight comes down and it actually goes back up – there is no greenhouse effect," Dr Chu said.
The Independent has more.
Last modified on Tuesday, 09 June 2009 14:48