You mean fossil fuels like the ones they're burning to grow, harvest, dry, transport, process, and distribute the materials for ethanol and the finished ethanol, so we can enjoy the benefits of a much less efficient fuel? Biodiesel is great. Ethanol, not so much. Since they can make biodiesel relatively efficiently, or more efficiently than ethanol, the emphasis should be to ramp up production of diesel powered cars and trucks and even bikes. If I could affordably convert my KLR to the diesel motor the Marine Corps uses, I would do so right now. Today. I am a huge fan of diesel power but for some crazy reasons it doesn't fit with the EPA's agenda.