Between our dark roofs and rising heat, cities ("urban heat islands") are relying on more and more energy to keep cool. Rolling black-outs or brown-outs have become more prevalent in the last couple of years, and we know white roofs can help reflect some of the light and heat. Can't paint your own shingles, but still want to help? Find out how.Enter the White Roof Project, which offers up this stunning infographic and, best of all, a way to help. Through the White Roof Project, you can help identify dark roofs, adopt a roof (meaning, donate money that goes to painting one dark roof white), and even volunteer to help paint an actual roof in New York City. And while that seems pretty local, it also seems like a reasonable goal—one that can then be implemented in other cities.