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Science 30 July 1999:
Vol. 285. no. 5428, pp. 687 - 689
DOI: 10.1126/science.285.5428.687
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Viewpoint

A Realizable Renewable Energy Future

John A. Turner

The ability of renewable resources to provide all of society's energy needs is shown by using the United States as an example. Various renewable systems are presented, and the issues of energy payback, carbon dioxide abatement, and energy storage are addressed. Pathways for renewable hydrogen generation are shown, and the implementation of hydrogen technologies into the energy infrastructure is presented. The question is asked, Should money and energy be spent on carbon dioxide sequestration, or should renewable resources be implemented instead.

National Renewable Energy Laboratory, Golden, CO 80401-3393, USA. E-mail: jturner{at}nrel.gov

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