Abstract
It is shown here that one burns 1 gallon of gasoline equivalent in fossil fuels to produce 1 gallon of gasoline equivalent as ethanol from corn. When this corn ethanol is burned as a gasoline additive or fuel, its use amounts to burning the same amount of fuel twice to drive a car once. Therefore, the fuel efficiency of those cars that burn corn ethanol is halved. The widespread use of corn ethanol will cause manifold damage to air, surface water, soil and aquifers. The overall energy balance of corn conversion to ethanol demonstrates that 65% of the input energy is lost during the conversion. Carbon dioxide sequestration by corn is nullified when corn ethanol is burned, and there will be additional carbon dioxide, nitrous oxides, and sulfur oxide emissions from the fossil fuels used to produce the ethanol.
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InstitutionalAuthorNameAMFA (1988) The Alternative Motor Fuels Act of 1988 (AMFA) is a federal statute (Public Law 100–494) that encourages the development and widespread use of methanol ethanol and natural gas as transportation fuels by consumers and the production of methanol, ethanol, and natural gas powered vehicles
API: July 1976, ’Alcohols: A Technical Assessment of Their Application as Motor Fuels’. API Publication No. 4261, Washington, D.C.
ATSDR: 2003,‘Agency for Toxic Substances and Discease Registry – Toxicological Profile Information Sheet’. WWW. http://www.epa.gov/oar/caa/contents.html.
CRC: 1972, Handbook of Chemistry and Physics. Cleveland, OH: Praeger
T. Egan (2001) ‘Near Vast Bodies of Water Land Lies Parched’. New York Times August 12
EIA: 2003, U.S. DOE Energy Information Agency: Annual Energy Review 2001-Petroleum. WWW.http://www.atsdr.cdc.gov/toxpros/tp72–c3.pdf.
S.S. Elliott N.L. Keim J.S. Stern K. Teff P.J. Havel (2002) ‘Fructose weight gain and the insulin resistance syndrome’, American Journal of Clinical Nutrition 76, 911–22
EPA: 2003a, Clean Air Act as amended in 1990. http://www.epa.gov/oar/caa/contents.html.
EPA: 2003b, U.S. EPA, Global Warming-Publications. http://yosemite.epa.gov/oar/globalwarming.nsf/content/Resource Center Publications GHGEmissions.html.
EPA: 2003c, U.S. Environmental Protection Agency, Corrective Action Measures Archive, Data on number of active and closed tanks, releases reported, cleanups initiated and completed, and emergency responses, http://www.epa.gov/oust/cat/camarchv.htm.
S.P. Ho (1989) ‘Global Warming Impact of Ethanol Versus Gasoline’. In: National Conference Clean Air Issues and America’s Motor Fuel Business. Washington D.C
J.M. Hunt (1996) Petroleum Geochemistry and Geology W.H.Freeman Co 2nd edn. New York
KASS: 2002. WWW.Kentucky Agricultural Statistics Service.
Keeney, D.R. and DeLuca, T.H.: 1992, ‘Biomass as an Energy Source for the Midwestern U.S’.. American Journal of Alternative Agriculture 7, 137–143.
H.S. Kheshgi R.C. Prince G Marland (2000) ‘The Potential of Biomass Fuels in the Context of Global Climate Change: Focus on Transportation Fuels’ Annual Review Energy and the Environment 25 199–244
G. Marland A.F. Turhollow (1991) ‘CO2Emissions From the Production and Combustion of Fuel Ethanol From Corn’ Oak Ridge National Laboratory Atmospheric and Climate Research Division, Oak Ridge, Tennessee
D. Morris I. Ahmed (1992) ‘How Much Energy Does it take to Make a Gallon of Ethanol?’. Monograph (8 pages) Institute for Local Self-Reliance Washington, D.C
NPGCD: 2003, North Plains Groundwater Conservation District (NPGCD). http://www.npwd.org/Ogallala.htm: The Ogallala Aquifer within the boundaries of the NPGCD is declining at an average of 1.74 feet per year.
NRC (1999) Ozone-Forming Potential of Reformulated Gasoline. Washington D.C National Academy Press. National Research Concil Committee
D. Pimentel (1991) ‘Ethanol Fuels: Energy Security Economics and the Environment’, Journal of Agricultural and Environmental Ethics 4, 1–13. Bioscience TX537.A25
D. Pimentel (1996) Food Energy and Society. Niwot, CO, University Press of Colorado
D. Pimentel (2001) Encyclopedia of Physical Science and Technology Chapt. The limits of biomass energy.3rd edn. New York Academic Press
D. Pimentel (2003) ‘Ethanol Fuels: Energy Balance Economics and Environmental Impacts are Negative’, Natural Resources and Research 12(2), 127–134
D. Pimentel W. Dazhong (1990) Agroecology Chapt. Technological changes in energy use in U.S. agricultural production New York, McGraw Hill, pp. 147–164
M. Pollan (2002) ‘Industrial Corn – Destroying Our Health Environment’. New York Times July 18th Op Ed
S.E. Powers C.S. Hunt S.E. Heermann H.X. Corseuil Rice D.W. Alvarez (2001) ‘The Transport and Fate of Ethanol and BTEX in Groundwater Contaminated by Gasohol’ Critical Reviews in Environment Science and Technology 31 79–123
A.J. Ramos J. Muñoz J.S. Marin V. Sanchis N. Magan (1999) ‘Calorific losses in maize in relation to colonisation by isolates of Aspergillus Ochraceus under different environmental conditions’ Journal of Cereal Science 29 177–183
D.W. et al. Rice (1999) ‘Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate – Report to the California Environmental Policy Council in Response to Executive Order D-5-99’. UCRL-AR-135949 Air Resources Board Lawrence Livermore National Laboratory, CA
N.J. Rosenberg D.J. Epstein D. Wang L. Vail R. Srinivasan J.G. Arnold (1999) ‘Possible impacts of global warming on the hydrology of the Ogallala aquifer’ Climatic Change 42 677–692
H. Shapouri J.A. Duffield M.S Graboski (1995) ‘Estimating the Net Energy Balance of Corn Ethanol’. Agricultural Economic Report No. 721 U.S. Department of Agriculture Economic Research Service, Office of Energy and New Uses, Washington, D.C
H. Shapouri J.A. Duffield M. Wang (2002) ‘The Energy Balance of Corn Ethanol: An Update’. Agricultural Economic Report No. 814 U.S. Department of Agriculture Economic Research Service, Office of the Chief Economist, Office of Energy Policy and New Uses, Washington, D.C
USDA: 2003, WWW. U.S. Department of Agriculture. http://www.nass.usda.gov:81/ipedb/.
USGS: 2003, ‘Water-level changes 1980–1997, and saturated thickness, 1996–97, in the High Plains Aquifer’. U.S. Geological Survey. http://www-ne.cr.usgs.gov/highplains/hp97webreport/fs-124–99.htm.
M. Wang C. Saricks M. Wu (1997) ‘Fuel-cycle fossil energy use and greenhouse gas emissions of fuel ethanol produced from U.S. Midwest corn’. Report sponsored by the Illinois Department of Commerce and Community Affairs Argonne National Laboratory Center for Transportation Research, Argonne, IL 60439
E. Worrell D. Pylipsen N. Martin (2000) ‘Energy use and energy intensity of the U.S. chemical industry’. Report LBNL-44314 Energy Analysis Department Environmental Energy Technologies Division, LBNL, Berkeley, CA 94720
E. Worrell R.J.J. van Heijningen J.F.M. de Castro J.H.O. Hazeewinkel J.G. de Beer A.P.C. Fauu K. Vringer (1994) ‘New gross energy-requirement figures for materials production’ Energy 19 627–640
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Students in the Spring 2003 CE24 Freshman Seminar offered at U.C. Berkeley by the Civil and Environmental Engineering Department
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Patzek, T.W., Anti, SM., Campos, R. et al. Ethanol From Corn: Clean Renewable Fuel for the Future, or Drain on Our Resources and Pockets?. Environ Dev Sustain 7, 319–336 (2005). https://doi.org/10.1007/s10668-004-7317-4
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DOI: https://doi.org/10.1007/s10668-004-7317-4