A new study shows that systems designed to capture methane from cow manure, called dairy digesters, are highly effective. But ...

Anaerobic digesters converting manure to biogas reduce methane emissions from livestock, but incentives for them have ...

Dairy methane digesters cut emissions on farms, but rare leaks can release powerful bursts that may offset their climate ...

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 ...

Digesters are slashing dairy methane emissions but new research finds even occasional leaks can erase much of the climate ...

A California state grant program designed to reduce greenhouse gas emissions results in the direct release of approximately 225,000 to 300,000 metric tons of carbon dioxide into the air each year, ...

The farm that Alice and Caleb Crothers inherited in 2015 was, like many dairy farms nationwide, struggling — but now, cow manure is helping to keep it going. Last fall, the Crothers started up a ...

A Danish company’s plans to turn cow manure into renewable energy in Minnesota and Wisconsin’s dairy country have tanked, at least for now. Nature Energy planned to build several large-scale anaerobic ...

PIXLEY, Calif. (AP) — 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 ...

STATE CENTER — The 8,000 Holsteins that make the feedstock for the $42 million Marshall Ridge Renewable Energy Center are barely visible — just a flash of black-and-white hide behind the screens of a ...

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 to counter the ...