Coal still keeps the lights on

With cheaper natural gas, wind, solar and other technologies, many people don’t think about coal as much as they once did. But coal is still very much a part of the nation’s energy mix every time a light switch is flipped or a manufacturer fires up the production line. Coal-fired plants accounted for 39 percent of the electricity generation in the U.S. in 2014, and will continue to be a factor for years to come. Read More