In the study, researchers assessed the feasibility, implications and limitations of producing 90bn gallons of ethanol a year — sufficient to replace more than 60bn of the estimated 180bn gallons of gasoline expected to be used annually by 2030. It was carried out over nine months.
The study assumed 75bn gallons would be ethanol made from nonfood cellulosic feedstocks and 15bn gallons from corn-based ethanol.
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