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California draws ire as out-of-state factory farms turn pig poop into cash

The Washington Post · last updated

POWERSVILLE, Mo. — Neighbors of industrial hog farms in Missouri, who have long battled agriculture companies over reeking manure lagoons, have encountered an unexpected obstacle in their fight: California.

Seven years ago, California embarked on an aggressive plan to reduce methane emissions from in-state dairy farms by bolstering a system of carbon credits. The credits encouraged the state’s dairy farmers to capture methane, a greenhouse gas that is produced by animal waste, and inject it into pipelines for use as an alternative fuel.