US Secretary of Energy, Dr. Steven Chu, has been promoting the benefits of 'white roofs' and the energy savings they could provide in the USA.. He has now mandated that all new roofs on Energy Department buildings be either white or reflective to provide a cooling effect. He estimates that is could save $735 million per year if 85% of all air-conditioned buildings in the US had white roofs. Wow!Read more on Inhabitat
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