Interesting read, personally, I don't care about the United Nation's organizations, let's do what's right for America instead of waiting on all the UN weasels to get their hands in the mix. IMO the UN is one of the most corrupt organizations on this planet.
Now, to ethanol, Brazil has a huge, refined ethanol industry, it grows sugar that is specifically created for ethanol production, it cannot be a food source (well maybe, if you could eat a bowling ball, you could probably eat this ethanol- sugar) the residue is made into other products.
I really don't see how that is a bad thing or effects food prices.