Ten years ago American natural gas fields were thought to be on the way out. American oil production was falling fast. Coal was king, and wind and solar energy production plans were barely underway. Much has changed. According to recent government projections, in September the U.S. will produce more oil than it imports for the first time in almost 20 years. The discovery of massive natural gas reserves and advances in fracking techniques are forcing a dramatic rewrite of America’s energy future, but what has not changed, so far, is our overall reliance on fossil fuels.