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14 Nov 12
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Turning plants
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into fuel uses much more energy than the resulting ethanol or biodiesel generates
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"There is just no energy benefit to using plant biomass for liquid fuel," says David Pimentel
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In terms of energy output compared with energy input for ethanol production, the study found that:
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corn requires 29 percent more fossil energy than the fuel produced;
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h additional costs are incurred,
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"The United State desperately needs a liquid fuel replacement for oil in the near future," says Pimentel
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30 Oct 10
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27 Mar 08
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03 May 07
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20 Feb 07
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27 Jan 06
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Turning plants such as corn, soybeans and sunflowers into fuel uses much more energy than the resulting ethanol or biodiesel generates
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