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Science 14 November 2008:
Vol. 322. no. 5904, pp. 1044 - 1045
DOI: 10.1126/science.322.5904.1044
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News Focus

RENEWABLE ENERGY:
Minnesota Ecologist Pushes Prairie Biofuels

Eli Kintisch

David Tilman wants to mix it up by growing native grasses for energy. Many agronomists disagree.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)