Word: hessenflow
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Dates: during 2007-2007
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...process ethanol from agricultural waste like wood chips or the humble summer grass called switchgrass. The cellulosic ethanol they produce packs more energy than corn ethanol, but it also takes more energy to manufacture. "If you make ethanol by burning coal, you defeat the purpose," says Sarah Hessenflow Harper, an analyst for the advocacy group Environmental Defense...
...many out there. Plus, manufacturing ethanol is a messy process: smokestack pollution can offset what you save from tailpipes. An overall carbon cap would fix that, but even a greener Bush won't go there. "You dirty up a clean fuel if you manufacture it dirtily," says Sarah Hessenflow Harper, an Environmental Defense analyst and a former agricultural adviser for Senators Sam Brownback and Chuck Hagel...
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