“A transition has begun from coal to natural gas as America’s most important source of electric power. Natural gas emits about half as much carbon dioxide per unit of energy as coal. That’s not as clean as solar or wind, but those technologies cannot (yet) compete on price.
Fracking offers hope that natural gas will soon cost least of all. If that hope comes true, the transition from coal to gas will generate a huge burst of economic activity and accelerate the transition to a more sustainable future for humanity.”