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Editorial

Nature 451, 865-866 (21 February 2008) | doi:10.1038/451865b; Published online 20 February 2008

Forward with biofuels

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Cellulosic biofuels are part of an emerging US energy policy, from which other regions can learn.

The energy law signed on 19 December by President Bush lays out a bold mandate for biofuels. As well as broadly ensuring that the United States remains home to the largest biofuels industry in the world in the coming decade, the law takes an important step forward by recognizing that all biofuels are not created equally.