Some 80 million pigs live on farms in the United States at any given time in 2020. The total number slaughtered in a year is even higher, as pigs are typically killed at 6 to 8 months of age. In 2019, nearly 130 million pigs were slaughtered.
To slaughter that many pigs in a year, we need a highly industrialized system. And indeed, that’s the food system we’ve created: 98.3 percent of those pigs live on CAFOs, or concentrated animal feeding operations. When you hear the phrase “factory farming” and imagine large industrial operations where a whole lot of animals are killed and processed, CAFOs are what you’re thinking of.
Large CAFOs as a model have major, negative ramifications for the welfare of animals that these facilities house. They rely on intensive confinement practices like, for instance, gestation crating, which involves confining mother pigs to fenced-in areas barely larger than their bodies, where they also lack the room to turn around. Ian Duncan, an eminent scholar of animal welfare at the University of Guelph, has described it as “one of the cruelest forms of confinement devised by humankind.”
But they have major negative ramifications for residents of towns where these CAFOs are located, too. That’s because pigs produce 8 to 10 times as much fecal matter on a daily basis as humans. When you look at a hog-farming state with lots of CAFOs like North Carolina, that adds up. A 2008 Government Accountability Office study looking at just five counties in North Carolina estimated that their CAFOs produced 15.5 million tons of pig manure every year.
Where does this manure — not to mention pig urine, as well — go? Into the air, largely. North Carolina farms typically use what’s called a “lagoon and sprayfield” system in which animal waste is stored in massive, open vats. It’s then sprayed back into the air to fertilize crops. That’s a way to save money for farmers.
But people (and disproportionately Black and brown people) have to live near these farms. They have to live with the smell of pig waste in the air, every day. They have to live with pig waste in their water, and with (according to a recent Duke study) a higher risk of death due to their proximity to these farms.
In the third season of the Vox Media Podcast Network series Future Perfect, we — me, my cohost Sigal Samuel, and our reporter/producer Byrd Pinkerton — are delving into the way the meat we eat affects all of us. And we’re starting in episode one by explaining North Carolina’s giant lagoons of pig poop, and the incredible environmental and human toll they’ve taken:
Sign up for the Future Perfect newsletter. Twice a week, you’ll get a roundup of ideas and solutions for tackling our biggest challenges: improving public health, decreasing human and animal suffering, easing catastrophic risks, and — to put it simply — getting better at doing good.
Help keep Vox free for all
Millions turn to Vox each month to understand what’s happening in the news, from the coronavirus crisis to a racial reckoning to what is, quite possibly, the most consequential presidential election of our lifetimes. Our mission has never been more vital than it is in this moment: to empower you through understanding. But our distinctive brand of explanatory journalism takes resources. Even when the economy and the news advertising market recovers, your support will be a critical part of sustaining our resource-intensive work. If you have already contributed, thank you. If you haven’t, please consider helping everyone make sense of an increasingly chaotic world: Contribute today from as little as $3.