The author of "Physics for Future Presidents" returns to educate readers on the most crucial conundrum facing the nation: energy.

A historic energy revolution is underway in the United States. Wind, sunlight, and other sustainable resources are now the fastest growing sources of energy in the U.S. and worldwide. American families are installing power plants on their roofs and entire communities are switching to 100 percent renewable energy. The urgent need to prevent climate change is causing people around the planet to question their reliance on carbon-intensive oil, coal, and natural gas. Author Bill Ritter, Jr., the 41st governor of Colorado and one of America's key thought leaders on this topic, discusses the forces behind the energy revolution, the new ways we must think about energy, and the future of fossil and renewable fuels. It is an essential read for any who want to understand one of history's biggest challenges to peace, prosperity, and security in the United States. Written in partnership with the Center for a New Energy Economy.