Love the link. It a DOE children's article.
I stand by my numbers
And. BTW,most ethanol does not come from Corn, or sugar crops...
Most of the ethanol used in industry is made, not by alcoholic fermentation, but by an addition reaction between ethene and steam.
C2H4 + H2O ==> C2H5OH
Ethene Steam Ethanol
http://www.ucc.ie/academic/chem/dolchem/html/comp/ethanol.html