In this Thursday, Aug. 19, 2010 photo, James Peterson, left, and Rory Stout with Bio Neighbors, apply a coating of Acrymax to the roof of a row home in Philadelphia. The idea of painting roofs white has become something of a social movement, one that Energy Secretary (and Nobel Prize-winning physicist) Steven Chu believes could be a huge help in stopping global warming.
Homes Cool Roofs
September 15, 2010
In this Thursday, Aug. 19, 2010 photo, James Peterson, left, and Rory Stout with Bio Neighbors, apply a coating of Acrymax to the roof of a row home in Philadelphia. The idea of painting roofs white has become something of a social movement, one that Energy Secretary (and Nobel Prize-winning physicist) Steven Chu believes could be a huge help in stopping global warming.
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