The United States is in a fast-moving race to clean energy independence.
Wind power: CaliforniaWind power accounts for 2 percent of U.S. electricity generation and is ahead of schedule to meet a target of 20 percent by 2030, according to the Washington-based American Wind Energy Association trade group. But the U.S. is still falling behind China when it comes to generating wind and solar power. In this photo, Vestas Wind Systems A/S’s 415-foot-tall wind turbines operate at the Sacramento Municipal Utility District (SMUD) 102-megawatt wind farm in Rio Vista, Calif. on March 10, 2010. The wind turbines, which are 100 feet taller than the Statue of Liberty, have blades with a wingspan as long as the length of a football field. Ken James/Bloomberg
OPINION | Do the traditional unemployment figures accurately reflect the true state of the American economy? That might just turn out to be the most dangerous political question of 2012, especially for the Obama administration.