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 ...

The U.S. dairy industry is a major contributor to agricultural greenhouse gas emissions, with manure storage and handling ...

Organic gardening is described as the natural, wholesome choice, yet an eighth grader from Ripon, California, has shown that animal-based fertiliser can carry a hidden microbial problem. Virinchi R.

Cow burps and manure emit the potent planet-warming gas, which over a shorter period is much more powerful than carbon dioxide. In recent decades, digesters that convert manure and other organic waste ...