Solar jobs have grown 20 percent a year since 2012; coal, not so much
Here's a little quiz on a topic much discussed over the past couple of years: jobs. How many people work in the U.S. coal industry? Not just miners, but office staff, too. And, how many people work for solar-energy companies in the U.S.? DON'T MISS: Clean energy provides far more U.S. jobs than fossil fuels: analysis Coal mining was a mainstay of...