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Your two sentences are incorrect. Modern agribusiness focuses on the overuse of corn for purposes ranging from fattening cattle to mive production of corn oil, high-fructose corn syrup, and other corn derivatives. An increased demand for ethanol will in no way impact the amount of corn available for actual food for humans. It will hopefully reduce the amount of corn available for the derivatives, especially high-fructose corn syrup which has been implicated in the epidemics of obesity and type-2 diabetes in overdeveloped countries. Don't be fooled by the propaganda of the corn industry.