CAFOs Uncovered

The report argues that CAFOs are propped up by taxpayer subsidies and the externalization of costs related to pollution and public health. It highlights that these operations, while producing over 50% of U.S. food animals, create massive manure management problems and antibiotic resistance. The author suggests that medium-sized and pasture-based operations are cost-competitive alternatives that would be more viable if subsidies were redirected and antitrust laws were enforced.

• CAFOs represent a small fraction of U.S. animal operations but dominate production and waste generation, producing more than 50 percent of food animals and approximately 300 million tons of manure annually, which is more than double the amount generated by the entire human population of the U.S.
• The predominance of CAFOs is attributed to misguided public policy and subsidies rather than market efficiency. Between 1996 and 2005, low-cost grain subsidies were worth nearly $35 billion (approximately $4 billion per year) to CAFOs. Additionally, the Environmental Quality Incentives Program (EQIP) provided an estimated $125 million in subsidies to CAFOs in 2007.
• CAFO manure causes significant water pollution, contributing to 'dead zones' in the Gulf of Mexico and the Chesapeake Bay. The report estimates that cleaning up soil under U.S. hog and dairy CAFOs could cost approximately $4.1 billion, based on data from Kansas.
• Air pollution from CAFOs is primarily driven by ammonia, which acts as a respiratory irritant and contributes to forest soil acidification. Up to 70 percent of nitrogen in CAFO manure can be lost to the atmosphere.
• The use of antibiotics for non-therapeutic purposes in CAFOs contributes to antibiotic-resistant pathogens. The costs associated with Salmonella alone are estimated at $2.5 billion per year, with 88 percent of that cost related to premature deaths.
• CAFOs negatively impact rural communities through odors, water contamination, and decreased property values. A study in Missouri indicated that each CAFO lowered surrounding property values by an average of $2.68 million; extrapolated nationally, this would represent a loss of about $26 billion.
• Alternative production methods, such as hog hoop barns and managed intensive rotational grazing (MIRG), are cost-effective and offer environmental benefits, including lower ammonia emissions and better carbon capture than the feed crops used by CAFOs.

APA

Gurian-Sherman, D. (2008). CAFOs Uncovered. Union of Concerned Scientists. https://www.ucs.org/sites/default/files/2019-10/cafos-uncovered-executive-summary.pdf

Chicago

Gurian-Sherman, Doug. CAFOs Uncovered. Union of Concerned Scientists, 2008. https://www.ucs.org/sites/default/files/2019-10/cafos-uncovered-executive-summary.pdf.

Wikipedia

{{cite report |last1=Gurian-Sherman |first1=Doug |title=CAFOs Uncovered |publisher=Union of Concerned Scientists |date=April 2008 |url=https://www.ucs.org/sites/default/files/2019-10/cafos-uncovered-executive-summary.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{guriansherman2008cafos, author = {Gurian-Sherman, Doug}, title = {{CAFOs Uncovered}}, institution = {Union of Concerned Scientists}, year = {2008}, month = apr, url = {https://www.ucs.org/sites/default/files/2019-10/cafos-uncovered-executive-summary.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }