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Sustainability 2011, 3(12), 2413-2432; doi:10.3390/su3122413
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Seeking to Understand the Reasons for Different Energy Return on Investment (EROI) Estimates for Biofuels

1,* , 2
 and 3
1 College of Environmental Science and Forestry, State University of New York, Syracuse, New York, NY 13210, USA 2 Michigan State University, East Lansing, MI 48824, USA 3 Cornell University, Ithaca, NY 14853, USA
* Author to whom correspondence should be addressed.
Received: 5 July 2011 / Revised: 17 November 2011 / Accepted: 24 November 2011 / Published: 13 December 2011
(This article belongs to the Special Issue New Studies in EROI (Energy Return on Investment))
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Abstract

The authors of this paper have been involved in contentious discussion of the EROI of biomass-based ethanol. This contention has undermined, in the minds of some, the utility of EROI for assessing fuels. This paper seeks to understand the reasons for the divergent results.
Keywords: Ethanol; EROI; corn-based; cellulosic Ethanol; EROI; corn-based; cellulosic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hall, C.A.; Dale, B.E.; Pimentel, D. Seeking to Understand the Reasons for Different Energy Return on Investment (EROI) Estimates for Biofuels. Sustainability 2011, 3, 2413-2432.

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