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Nature 445, 147 (11 January 2007) | doi:10.1038/445147a; Published online 10 January 2007

Hidden subsidies and risks pump up real price of oil

Dick Lugar1

  1. United States Senate, 306 Hart Senate Office Building, Washington DC 20510, USA

Congratulations on your excellent Biofuels Special (Nature 444, 654; 2006 and Nature 444, 669–678; 2006). Not only is this an important topic for scientists and environmentalists, but also developing energy products that move the United States away from its over-dependence on oil is a critical national-security priority.

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