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 ...

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 ...

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 ...

Let down by electric utilities, farmers bet on natural gas as a more promising way to make a return from cow manure. This story is the second in a three-part series. Read the first and third ...

This can be sold off as a product, or used directly to run specially tailored engines. The solid remainder of the waste is used as fertilizer. Cow manure is washed out as a slurry, and kept in covered ...

Cow manure may soon help tackle pollution, greenhouse gases, and waste management issues—all while producing a versatile, eco-friendly manufacturing material. Researchers at UCL Mechanical Engineering ...