MORE BENIGN MANURE.

• Position: Brief Article

Manure from "corporate pig farms" can become a major problem in the United States (Illinois charged a large farm operation in August with air pollution violations due to alleged odors; and waste lagoons overflows have resulted in fish kills in nearby streams). But now canny Canadian gene-splicers at the University of Guelph in Ontario have come up with the "Enviropig." They say this pig's manure is less harmful to...