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A strange new growth has emerged from the manure pits of midwestern hog farms. The results are literally explosive.
Since 2009, six farms have blown up after methane trapped in an unidentified, pit-topping foam caught a spark. In the afflicted region, the foam is found in roughly 1 in 4 hog farms.
There’s nothing farmers can do except be very careful. Researchers aren’t even sure what the foam is.
“This has all started in the last four or five years here. We don’t have any idea where it came from or how it got started,” said agricultural engineer Charles Clanton of the University of Minnesota. “Whatever has happened is new.”
A gelatinous goop that resembles melted brown Nerf, the foam captures gases emitted by bacteria living in manure, which on industrial farms gathers in pits beneath barns that may contain several thousand animals.
If microbes are to blame, the next question would be: Why now? Deep-pit manure collection on high-density hog farms has been around for decades. Some recent and specific change would need to be responsible for altering the communities of microbes inside them.
“I don’t think it’s a dangerous new microbe,” said Angela Kent, a microbial ecologist at the University of Illinois at Urbana-Champaign. “I think it’s a shift in the environment that’s favoring a particular microbial assemblage that’s inadvertently causing this.”
One possibility is a dramatic rise in the agricultural use of so-called distiller’s grain, a byproduct of alcohol and ethanol production: Between 2001 and 2003, the amount of distiller’s grain in hog food quadrupled in the United States. Some evidence suggests a link to foaming, though it’s still tentative.
Changes in water use, antibiotic distribution and even corn genetics have also been suggested as hypothetically plausible culprits, but hypothetical is the operative term.
Originally posted by DerepentLEstranger
reply to post by speculativeoptimist
LOL
The Deadly Threat of GMO Pig Poop
flagged
TextIf microbes are to blame, the next question would be: Why now? Deep-pit manure collection on high-density hog farms has been around for decades. Some recent and specific change would need to be responsible for altering the communities of microbes inside them. “I don’t think it’s a dangerous new microbe,” said Angela Kent, a microbial ecologist at the University of Illinois at Urbana-Champaign. “I think it’s a shift in the environment that’s favoring a particular microbial assemblage that’s inadvertently causing this.”
There’s nothing farmers can do except be very careful. Researchers aren’t even sure what the foam is.
“This has all started in the last four or five years here. We don’t have any idea where it came from or how it got started,”