Fracking has not derailed the growth of renewable energy. Electricity from renewables, power sources that emit no carbon, has grown fast. The wind provided three-tenths of 1 percent of US power a decade ago. It is now about 4 percent. Considering that American energy consumption is Brobdingnagian, that’s historic growth. Solar is also growing but remains much smaller.
Photo by Fotolia/Maria Kondratjeva