 She added, quote, decades of data have demonstrated again and again that bioethanol has not increased crop acreage. In fact, U.S. farm acreage has been largely unchanged since the 1930s. Even the U.S. Department of Energy rejected similar claims in a letter to Growth Energy acknowledging the scientific consensus that U.S. ethanol slashes greenhouse gas emissions by 44 to 52 percent, end quote. Also, the Renewable Fuels Association urging U.S.