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 ...

Cow power — manure — seen as part of climate change strategy Capturing methane from manure can reduce pollution and save energy, but technology can be tricky and too expensive to make money.

Government subsidies helped dairy farmers generate electricity from cow manure, but the novelty is wearing off as utilities pay next to nothing to put it on the grid. This story is the first of three ...

Chemicals—from antibiotics used to keep livestock healthy to pesticides that shield crops from insects and other pests—play an important role in modern agriculture. However, many of these substances ...