The New Color of Oil

Our entrepreneurs are at it again. This time they’re finding fresh ways to help the U.S. kick its oil habit.

Iraqi insurgents blow up oil pipelines. Crude prices soar to $50 a barrel. The snows of Kilimanjaro recede, a reminder of the threat of global warming. Childhood asthma, aggravated by tailpipe and power plant emissions, rises dramatically. It’s little wonder that a new generation of entrepreneurs believes that clean alternative energy—geothermal, hydrogen, solar, and wind—may finally turn into a serious business.
Fortune