By Diane Maceachern Moms Clean Air Force   The Clean Power Plan just hit the national register. It’s goal: to see America’s power plants reduce the amount of climate-changing carbon dioxide they emit by 32%. Utilities have until 2030 to achieve…

By Stephanie Livingston Futurity   The picture most people have of ancient Maya civilizations—royalty and elaborate temples—isn’t broad enough, researchers say. But now, ancient bones are hinting at the lives of the other 99 percent—the Maya middle class. “When…