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Study finds GHG emissions from corn ethanol now 46% lower than gasoline
A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline a decrease in emissions from the estimated 39% done by previous modeling.
The report, led by David MacIntosh, Chief Science Officer of Environmental Health & Engineering, Inc. (EH&E) and Adjunct Professor of Environmental Health at Harvard’s T.H. Chan School of Public Health, and consulted by dozens of experts in academia, updates ethanol’s carbon intensity score to reflect how continuous improvements in technology and practices have driven further emissions reductions in the lifecycle of ethanol and will lead to net zero renewable fuel in the future.
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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
Corn Ethanol Emits 46% Less Greenhouse Gases Than Gasoline
Finding Differs from Conventional Wisdom Suggesting Only 20%
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NEWTON, Mass., Jan. 26, 2021 /PRNewswire/ Research from
Environmental Health & Engineering, Inc.(EH&E) shows that greenhouse gas (GHG) emissions for ethanol, a biofuel made from corn, are 46% lower than gasoline. Conventional wisdom based on a prior analysis done by EPA had pegged the difference to only 20%. EH&E s topical review of the latest science shows that this renewable biofuel is less carbon intensive and more climate-favorable than previously thought. This research provides an up-to-date accounting of corn starch ethanol s GHG profile in comparison to that of gasoline refined from crude oil, says EH&E Chief Science Officer
(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