Brooks, C. 2010. New report reveals the environmental and social impact of the 'livestock revolution'. Stanford University. http://news.stanford.edu/news/2010/march/livestock-revolution-environment-031610.html
 Food and Agriculture Organization of the United Nations. 2006. Livestock’s long shadow: Environmental issues and options. http://www.fao.org/docrep/010/a0701e/a0701e00.HTM
 Smithsonian Institution. 2002. Smithsonian Researchers Show Amazonian Deforestation Accelerating. ScienceDaily, 15 January 2002.http://www.sciencedaily.com/releases/2002/01/020115075118.htm
 Interagency Agricultural Projections Committee. 2014. USDA Agricultural Projections to 2023. Office of the Chief Economist, World Agricultural Outlook Board, U.S. Department of Agriculture. http://www.usda.gov/oce/commodity/projections/
 Pollan, Michael 2008. Interview on Bill Moyers Journal. http://www.pbs.org/moyers/journal/blog/2008/11/michael_winship_michael_pollan.html
 Weber, Christopher L. and Matthews, H. Scott 2008. Food-Miles and the Relative Climate Impacts of Food Choices in the United States.http://pubs.acs.org/doi/abs/10.1021/es702969f
 Comerford, Dr. John 2009. Telling the Grass-Fed Beef Story. http://extension.psu.edu/animals/beef/grass-fed-beef/articles/telling-the-grass-fed-beef-story
 Tepper, Fabien 2014. Meat-eaters versus carnivores: Is your diet killing wolves? The Christian Science Monitor. http://www.csmonitor.com/Science/2014/0110/Meat-eaters-versus-carnivores-Is-your-diet-killing-wolves
 USDI-BLM, USDA-Forest Service. 1995. Rangeland Reform ’94 Final Environmental Impact Statement. USDI-BLM. Washington, DC: 26.
 Wilcove, D. S., D. Rothstein, J Dubow, A Phillips, E. Losos. 1998. Quantifying threats to imperiled species in the United States: assessing the relative importance of habitat destruction, alien species, pollution, overexploitation and disease. BioScience 48(8): 610.
 Gerber, P.J., Steinfeld, H., Henderson, B., Mottet, A., Opio, C., Dijkman, J., Falcucci, A. & Tempio, G.
2013. Tackling climate change through livestock – A global assessment of emissions and mitigation
opportunities. Food and Agriculture Organization of the United Nations (FAO), Rome.
 U.S. Environmental Protection Agency. Ruminant Livestock, Frequent Questions. http://www.epa.gov/rlep/faq.html
 Vesterby, Marlow and Krupa, Kenneth S. 2001. Major Uses of Land in the United States. http://www.ers.usda.gov/publications/sb-statistical-bulletin/sb-973.aspx
 Congressional Legislative Information (OCIR) 1998. Legislative Hearings and Testimony: Statement of Michael Cook before the subcommittee on livestock, dairy, and poultry and the subcommittee on forestry, resource conservation, and research of the committee on agriculture U.S. House of Representatives. http://www.epa.gov/ocirpage/hearings/testimony/105_1997_1998/051398.htm
 Goodland, R. and J. Anhang. 2009. Livestock and Climate Change. World Watch Magazine 22(6): 10-19. http://www.worldwatch.org/node/6294
 Bojana B., K. S. Richards, J. M. Allwood, P. Smith, J. S. Dennis, E. Curmi and C. A. Gilligan. 2014. Importance of food-demand management for climate mitigation. Nature Climate Change 4(10): 924–929. http://re.indiaenvironmentportal.org.in/files/file/food-demand%20management.pdf
 US Department of Health and Human Services. 2013. Antibiotic resistance threats in the United States, 2013. Centers for Disease Control and Prevention, Atlanta, GA: http://www.cdc.gov/drugresistance/threat-report-2013/.
 Hall, K.D., J. Guo, M. Dore, and C.C. Chow. 2009. The Progressive Increase of Food Waste in America and Its Environmental Impact. PLOS ONE 4(11): e7940. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007940.
 ReFED, 2016. A Roadmap to Reduce U.S. Food Waste by 20 Percent. http://www.refed.com/.
 FAO, 2013. Food wastage footprint: Impacts on natural resources. http://www.fao.org/docrep/018/i3347e/i3347e.pdf.
 USDA, Office of the Chief Economist. U.S. Food Waste Challenge FAQs. Retrieved April 26,2017 from https://www.usda.gov/oce/foodwaste/sources.htm.
 EPA. Greenhouse Gas Emissions. Retrieved April 26, 2017 from https://www.epa.gov/ghgemissions/overview-greenhouse-gases.