Ethanol: a waste of energy

A new study by Cornell ecologist David Pimentel finds that producing ethanol from plant products requires more energy to produce than is obtained from the resulting fuel. That, coupled with the fact that your gas mileage goes down when using ethanol-blended fuels, and we have to ask why we're trying to produce more ethanol. Actually, what really needs to be asked is why we're subsidizing the production of ethanol using tax dollars?