Factory farms are harmful to the public and the environment, researchers report.

By Marla Cone
The Los Angeles Times

Growing so large that they are now called factory farms, livestock feedlots are poorly regulated, pose health and ecological dangers and are responsible for deteriorating quality of life in America's and Europe's farm regions, according to a series of scientific studies published this week.

Feedlots are contaminating water supplies with pathogens and chemicals, and polluting the air with foul-smelling compounds that can cause respiratory problems, but the health of their neighbors goes largely unmonitored, the reports concluded.