Roof Color Change
Earlier this summer Secretary Chu was in London talking about “cool roofs”. For those of you not down with the lingo, a cool roof is a flat topped roof painted white. Desert cultures have long known about the benefits of white stucco, which reflects heat. As opposed to black, which absorbs heat. Chu says he has a colleague who reckons that changing all flat-topped roofs to white and changing the color of all the roads in the world to a concrete color, as opposed to a black-top color, would reflect sun back into space and cool the planet. They say it’d be the equivilant of 44 billion tonnes of carbon dioxide, offsetting the last 18 years of car emissions. …Read the rest »
