(Renewable Fuels Association) A comprehensive new study by scientists from Harvard University, Tufts University and Environmental Health & Engineering Inc. shows that using corn ethanol in place of gasoline reduces greenhouse gas emissions by almost half. The “central best estimate” of corn ethanol’s carbon intensity is 46% lower than the average carbon intensity of gasoline, according to the study’s authors, with some corn ethanol in the market today achieving a 61% reduction. The study credits recent efficiency improvements and the adoption of new technologies for the steady reduction in the lifecycle carbon intensity of corn ethanol. The new study will be published in an upcoming volume of