With ethanol's demands on corn crops, the increased prices of corn have meant that decreasing farm subsidy payments have been more than double the cost of ethanol subsidies. (getenergysmartnow.com)
Or, best case from the entire corn crop = 3 billion X 4 = 12 billion gallons a year, today. (greencarcongress.com)
That is more than the second largest use of corn, as feed for cattle, pigs and chickens, which consumes 36 percent of the annual corn crop. (dailycaller.com)