02/23/2011 02:29 pm ET | Updated May 25, 2011

How CAFOs Take Their Toll On Humans, Too

When I talk about farming, I usually focus on antibiotic over-use and the way that it stimulates the emergence of drug-resistant organisms. That's part of what my recent book is about, and to me, it's the critical piece in the entire discussion of industrial-scale agriculture. If we didn't use antibiotics in such vast quantities, confined animal-feeding operations, CAFOS, couldn't exist: Animals couldn't survive in those conditions without them.

But so many other negatives come from CAFOs -- not just antibiotic resistance, but air and water contamination, and chronic human diseases caused by effluent and pollution.

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