"Geoengineering, or manipulation of the planet's climate, can be a dangerous practice--so much so that the UN is attempting to ban it. But there is little downside to painting rooftops white--making them reflect sunlight, cutting down on temperatures in crowded urban areas, and reducing the need for air-conditioning. That's why New York City's Cool Roofs initiative, which just whitewashed its one millionth square foot of rooftop, has become so popular."Read the FastCompany article.
