PIXLEY, Calif. — The stench of cow feces, urine and ammonia forces residents to keep windows and doors closed in parts of California's farming country. Some people constantly run air purifiers at home ...

Methane digesters are being promoted to reduce animal waste and create energy on farms, including CAFOS (Concentrated Animal Feeding Operations). Sounds like a great idea, right? However, the real ...

Add Yahoo as a preferred source to see more of our stories on Google. One of California’s biggest sources of methane pollution — its massive dairy industry — operates almost entirely without ...

Two Portland residents are suing NW Natural, Oregon’s largest natural gas company, alleging the utility is putting customer money toward methane digester projects at industrial dairy farms without ...

LANSING – The state is backing the construction of two digesters that will turn animal waste into energy at Michigan dairy farms. Freehold Energy RNG, a Nevada limited liability company, plans on ...

Novilla RNG constructs manure digesters that have the appearance of grain bins to capture methane. This one is south of Sioux Center in western Iowa. (Courtesy of Novilla RNG) Buy Photo The Gazette ...