Bob,
Well, I know it should not be ethanol made from corn as we are pushing now, GM has made 90% of its new fleet to run on E85 and in Florida there are 4 stations selling it and 2 are for the public and the other 2 are for the government only. The price is more than gas and you get poorer gas mileage with E85. Do a search on pond scum which can be made into a bio-diesel product were they can produce
oil from water and the sun. You don’t need fertile earth as with corn and you produce 200 times more fuel per acre with pond scum than corn and it’s a product that would be only used for fuel not something that would be better used for food.