USA Today: Health & Science
By Traci Watson
For as long as the dog has been mans best friend, dog waste has posed a menace to mans nose and foot. Now science has revealed a more unsavory truth: Its an environmental pollutant.
In the mid-1990s, scientists perfected methods for tracking the origin of nasty bacteria in streams and seawater. From Clearwater, Fla., to Arlington, Va., to Boise the trail has led straight to the hunched-up dog — and to owners who dont pick up after their pets.