http://money.cnn.com/magazines/fortune/...67959/index.htm?section=cnn_topstories
And have you heard about GM's yellow gas caps? In the next few weeks the auto giant is set to unveil an unlikely marketing campaign drawing attention to E85 and its E85-ready cars and trucks like the Chevy Avalanche. They will sport special yellow gas caps, and if you already own such a vehicle, GM will send you a gas cap free. California governor and Hummer owner Arnold Schwarzenegger is backing a ballot initiative that would encourage service stations to offer ethanol at the pump. Even big oil companies like Royal Dutch Shell and Exxon Mobil are funding ethanol research. Says Beth Lowry, GM's vice president for energy and environment: "People's perception used to be 'The agricultural lobby is very interested in it.' Now people are waking up and saying, 'This isn't just about the Midwest. This is about the U.S. as a whole.' " Adds Daniel Yergin, one of the country's top energy experts: "I don't think I've seen so many kinds of renewable energy fermenting and bubbling as right now. The very definition of oil is broadening."