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 ...

HALIFAX — Like many farmers, Nick Green trades and barters as a way to ensure his cattle have enough land to graze. Unlike many farmers, Green trades in manure. “We essentially provide a service,” ...

On a rural road in Kansas, surrounded by farm fields, a startup called Vaulted Deep is pioneering a new type of carbon removal: injecting animal manure and sewage sludge 1,000 feet underground to ...