e195.
For a critique of biofuels on the grounds of their poor rate of Energy Return On Energy Invested (EROEI) see, for instance, David Pimentel and Tad W. Patzek, “Ethanol Production Using Corn, Switchgrass, and Wood: Biodiesel Production Using Soybean and Sunflower”, Natural Resources Research, 14, 1, March 2005, pp 65–76; and David Pimentel, Tad Patzek and Gerald Cecil, “Ethanol Production: Energy, Economic and Environmental Losses”, Review of Environmental Contamination and Toxicology, 189, 2007 pp 25–41. For a reply to the critique, see National Biodiesel Board, “Response to David Pimentel Biodiesel Life Cycle Analysis”, July 2005 available at http://tinyurl.com/or624r7 . For an overview of the debate, see Frank Rosillo-Calle and Francis X. Johnson (2010), Food versus Fuel, An Informed Introduction to Biofuels.