Abbott, M. M., and Van Ness, H. C., 1972, Theory and problems of thermodynamics: McGraw-Hill Book Co. New York, 346 p.Google Scholar
Allison, F. E.,1973, Soil organic matter and its role in crop production: Elsevier, New York, 639 p.Google Scholar
Anonymous, 2002, Inventory of U.S. greenhouse gas emissions and sinks: 1990–2000: Rept. EPA 430-R-02-003, U.S. Environmental Protection Agency, Office of Atmospheric Programs, Washington, D.C., http://yosemite.epa.gov/oar/global warming.nsf/-UniqueKeyLookup/SHSU5BUM9T/$File/ghg_gwp.pdf.
Anonymous, 2003, Public health assessment gopher state ethanol, City of St. Paul Ramsey County, Minnesota: Rept. Under Cooperative Agreement with the Agency for Toxic Substances and Disease Registry, The Minnesota Department of Health, St. Paul, MN 55164-0975, www.health.state.mn.us/divs/eh/hazardous/sites/ramsey/gopher/pha.html.
Berthiaume, R., Bouchard, C., and Rosen, M. A., 2001, Exergetic evaluation of the renewability of a biofuel: Exergy Intern. Jour. v. 1, no. 4, p. 256–268.CrossRefGoogle Scholar
Carnot, S., 1943, Reflections on the motive power of heat and on the machines fitted to develop this power: Am. Soc. Mechanical Engineers, New York, 107 p.
de Oliveira, M. E. D., Vaughan, B. E., and Rykiel, E. J., 2005, Ethanol as fuel: Energy, carbon dioxide balances, and ecological footprint: Bioscience v. 55, no. 7, p. 593–602.CrossRefGoogle Scholar
Farrell, A. E., Plevin, R. J., Turner, B. T., Jones, A. D., O’Hare, M., and Kammen, D. M., 2006a, Ethanol can contribute to energy and environmental goals: Science v. 311, no. 5760, p. 506–508.CrossRefGoogle Scholar
Farrell, A. E., Plevin, R. J., Turner, B. T., Jones, A. D., O’Hare, M., and Kammen, D. M., 2006b, Science Letters–Response: Science v. 312, no. 5781, p. 1747–1748.Google Scholar
Farrell, A. E., Plevin, R. J., Turner, B. T., Jones, A. D., O’Hare, M., and Kammen, D. M., 2006c, Supporting online material: www.sciencemag.org/cgi/content/full/311/5760/506/DC1.
Graboski, M. S., 2002, Fossil energy use in the manufacture of corn ethanol: Rept. prepared for the National Corn Growers Association, Colorado School of Mines.
Hall, C. A. S., and Day, J. W., eds., 1977, Ecosystem modeling in theory and pactice: An introduction with case histories: John Wiley & Sons, New York, 684 p.Google Scholar
Ho, M.-W., and Ulanowicz, R., 2005, Sustainable systems as organisms?: P. Biosystems, v. 82, p. 39–51.CrossRefGoogle Scholar
Howarth, R. W., 2000, Nutrient pollution of coastal rivers, bays, and seas: Issues in Ecology, v. 7, no. 1, p. 1–17.Google Scholar
Howarth, R. W., Boyer, E. W., Pabich, W. J., and Galloway, J. N., 2002, Nitrogen use in the United States from 1961–2000 and potential future trends: Ambio v. 31, no. 2, p. 88–96.CrossRefGoogle Scholar
Kaharabata, S. K., Schuepp, P. H., and Desjardins, R. L., 2000, Estimating methane emissions from dairy cattle housed in a barn and feedlot using an atmospheric tracer: Environmental Science & Technology v. 34, no. 15, p. 3296–3302, http://dx.doi.org/10.1021/es990578c.CrossRefGoogle Scholar
Morris, D., and Ahmed, I., 1992, How much energy does it take to make a gallon of ethanol?: Monograph (8 pages), Institute for Local Self-Reliance, Washington, D.C., Updates published at http://www.carbohydrateeconomy.org/library/ admin/uploadedfiles/How_Much_Energy_Does_it_Take_to_ Make_a_Gallon_html.
Patzek, T. W., 2004, Thermodynamics of the corn-ethanol biofuel cycle: Critical Reviews in Plant Sciences v. 23, no. 6, p. 519–567, An updated web version is at http://petroleum. berkeley.edu/-papers/patzek/CRPS416-Patzek-Web.pdf.
Patzek, T. W., 2006a, Letter, Science v. 312, no. 5781, p. 1747.Google Scholar
Patzek, T. W., 2006b, A statistical analysis of the theoretical yield of ethanol from corn starch: Natural Resources Research v. 15, no. 3, p. 205–212.
Patzek, T. W., Anti, S.-M., Campos, R., Ha, K. W., Lee, J., Li, B., Padnick, J., and Yee, S.-A., 2005, Ethanol from corn: Clean renewable fuel for the future, or drain on our resources and pockets?: Environment, Development & Sustainability v. 7, p. 319–336.CrossRefGoogle Scholar
Patzek, T. W., and Pimentel, D., 2006, Thermodynamics of energy production from biomass: Critical Reviews in Plant Sciences v. 24, no. 5–6, p. 329–364, Available at http://petroleum. berkeley.edu/papers/patzek/CRPS-BiomassPaper. pdf.Google Scholar
Pimentel, D., 2006, Soil erosion: A food and environment threat: Environment, Development & Sustainability v. 8, p. 119–137.CrossRefGoogle Scholar
Pimentel, D., and Patzek, T. W., 2005, Ethanol production using corn, switchgrass, and wood; biodiesel production using soybean and sunflower: Natural Resource Research v. 14, no. 1, p. 67–76, Available at http://petroleum.berkeley.edu/papers/patzek/CRPS-BiomassPaper. pdf.Google Scholar
Planck, M., 1926, Treatise on thermodynamics (3rd edn.): Dover Publ. Inc., New York, 297 p.
Shapouri, H., and McAloon, A. 2004, The 2001 net energy balance of corn ethanol: Rept., USDA, Washington, D.C., Also presented as a conference paper by H. Shapouri, A. McAloon, and M. Wang, Corn Utilization and Technology Conference, Indianapolis, Indiana, www.usda.gov/ ooe/reports/energy/index.htm.
Shapouri, H., Duffield, J. A., and Wang, M., 2002, The energy balance of corn ethanol: An update: Agricultural Economic Rept. No. 814, U.S. Dept. Agriculture Economic Research Service, Office of the Chief Economist, Office of Energy Policy and New Uses, Washington, D.C., 19 p.
Shapouri, H., Duffield, J. A., and Wang, M., 2003, The energy balance of corn ethanol revisited: ASAE Trans. v. 46, no. 4, p. 959–968.Google Scholar
Sheehan, J., Camobreco, V., Duffield, J., Graboski, M., and Shapouri, H., 1998, Life cycle inventory of biodiesel and petroleum diesel for use in an urban bus: Final Rept. NREL/SR-580-24089, National Renewable Energy Laboratory, Golden, Colorado 80401, www.nrel.gov/docs/legosti/ fy98/24089.pdf.
Slesser, M., ed., 1974, Energy analysis workshop on methodology and conventions: The Nobel House, Stockholm, Sweden, Internn. Federation Inst. Advanced Study.
Slesser, M., ed., 1975, Workshop on energy analysis and economics: Lidingö, Sweden, Inter. Federation Inst. Advanced Study.
Stevenson, F. J., 1982, Humus chemistry. Genesis, composition, reactions: John Wiley & Sons, New York, 443 p.Google Scholar
Stodola, A., 1927, Steam and gas turbines with the supplement on the prospects of the thermal prime mover: McGraw-Hill Book Co. Ltd., New York, 2 v. (authorized translation of the sixth German edition).
Tegtmeier, E. M., and Duffy, D., 2004, External costs of agricultural production in the United States: Intern. Jour. Agricultural Sustainability, v. 2, no. 1, p. 1–20.Google Scholar
Wang, M., 2001, Development and use of GREET 1.6 fuel-cycle model for transporation fuels and vehicle technologies: Tech. Rept. ANL/ESD/TM-163, Argonne National Lab. Center for Transportation Research, Argonne, Illinois.
Wang, M., Saricks, C., and Wu, M., 1997, Fuel-cycle fossil energy use and greenhouse gas emissions of fuel ethanol produced from U.S. Midwest corn: Rept. sponsored by the Illinois Dept. of Commerce and Community Affairs. Argonne National Lab., Center for Transportation Research, Argonne, Illinois.