Could it be done? Yes, and here's why. First, the needed technologies exist right now. No need to wait for some time way out in the future when we can all line up to buy hydrogen from multi national corporations who have cornered the market on hydrogen. Second, we are Americans. We have historically risen to the challange to inovate. We spanned a continent with railroads, built the Panama Canal, electrified rural America, built the interstate highway system, and put a man on the moon. The challange is not too great. One immediate question is how will we run our cars? The answer is electric cars. Again the technologies exist right now. You say "but electric cars can only go 75 to 100 miles with out a re-charge". True, but answer this question; What is the range of an electric car, if instead of pulling into a gas station you pulled into a battery exchane station? Answer;Unlimited. Where will we get the needed electricity? Existing hydro generation, wind, solar and geo-thermal. Temporary use of natural gas (a relatively clean buring fossil fuel) during the transitional period will help bridge the gap. Wind generation is a proven producer right now. Science News reported a couple years ago that virtually all the power needs of the US could be met with wind power alone. Wind is far cheaper than nuclear power and competitve with fossil fuels. Solar panels (photovoltaic or PV panels) could become ubiquitous with legislation requiring all new buildings to produce a portion of their useage, say 10%. This would immediately create a market for PV, competition and mass production would drive the price down to the point that it would make economic sense for indiviuals to install PV panels. Who wouldn't invest a few hundred dollars for PV if the payback period was just a couple years and thereafter the panels would actually make money. There would also have to be requirements for power providers to install two way metering upon request. These are the basics. Just immagine what would happen to the price of oil if we announced to the world our intention to be fossil fuel free in ten years. And where would the terrorists get the money to carry on world wide jihad if their benefactors where suddenly without their sea of oil profits?