Plan B 3.0 is a free book available on the internet (download). The true cost of gasoline may amaze you and this was in about 2007. "For a gasoline tax, the most detailed analysis available of indirect costs is found in The Real Price of Gasoline by the International Center for Technology Assessment. The many indirect costs to society—including climate change, oil industry tax breaks, oil supply protection, oil industry subsidies, and treatment of auto exhaust-related respiratory illnesses—total around $12 per gallon, slightly more than the cost to society of smoking a pack of cigarettes. If this external or social cost is added to the roughly $3 per gallon average price of gas in the United States in early 2007, gas would cost $15 a gallon. These are real costs. Someone bears them. If not us, our children. Now that these costs have been calculated, they can be used to set tax rates on gasoline, just as the CDC analysis is being used to raise taxes on cigarettes." The book (Google PB3) makes for depressing reading so be warned! Steve