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Some in the [[Food vs. Fuel]] debate consider the use of a high-energy food crop, such as corn, detrimental to our food supply. In particular, [[Lester Brown]] of the [[Earth Policy Institute]] is known for advocating this position.
The auto fuel ethanol government standards in Brazil, do not allow any water.
Ethanol has about 36% oxygen by weight whereas normal gasoline has no oxygen.
This is why a car runs much smoother at very low temperatures during the first 2 or 3 minutes as the oxygen content in ethanol enhanced gasoline allows a hotter, cleaner burn.
[[Category:Organic Chemistry]]
