What's Killing 'King Coal' In West Virginia?
For decades, coal represented half of the nation's electricity generation, but it dropped to only 34 percent for the month of March. While the decline is partially due to a warmer winter and stricter environmental regulations, the real culprit may be natural gas. Technological breakthroughs in fracking have led to a gas boom that's caused prices to plummet. As a result, power plants are switching from coal to natural gas and mines in Appalachia are shutting down.