Brazil, as I recall, uses sugar. Truthfully I don't know what part of the plant is being turned into ethanol, but when one thinks of sugar, one doesn't think of it as bread (wheat) or corn (on-the-cob, or even as an animal feed).

Changing "waste" plant production into ethanol sounds like a better idea than using wheat (I hadn't heard that one until I read a reply here) or corn.

One of the questions is, what does one use as a fuel to make the change from that product to ethanol.

centrider