WhiteRoofs

In a recent symposium, U.S. Energy Secretary Steven Chu proposed painting roofs white and using lighter-colored road surfaces as a means to reduce global warming and air conditioning expenditures. Chu argues that this move could have the same effect as taking all cars off the road for 11...

Back in science class we (should have) learned that white surfaces reflect all visible light. For centuries, people living in sunny climes have taken advantage of that property to reduce the heat load on their property, by creating white roofs. White roofs reflect the sun's rays and can make a...