Hog farmers are being warned of dangerous fires and explosions that can start from highly concentrated methane gas in the form of bubbling foam oozing out of pig manure. Methane gas in the excrement ...

The foam traps gases like methane and when a spark ignites it causes an explosion. About a half dozen barns in the Midwest have exploded since the foam was discovered in 2009. In mid-September 2011, a ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. A specter haunts the Midwest’s factory-scale hog farms: the specter of explosive ...

In what may be the most spectacularly disgusting story of the month, Grist reports on a phenomenon that has killed thousands of pigs on giant industrial hog farms. Farms (OK, “farms”) throughout the ...

As if anyone needed another reason to stay away from pig pens, pig farms have been exploding. The culprit is a highly-explosive form of gray mush that turns up, from time to time, in ditches full of ...

North American pig farmers have reported several occurrences in the past year of large volumes of black foam rising from under slatted floors which can produce hazardous gases. As the gases are ...