Great Interview w/ Peter Singer

Salon.com Books | The practical ethicist: "In fact, there's a University of Chicago study that shows that if you switch from driving an American car to driving a Prius, you'll cut your carbon-dioxide emissions by one ton per year. But if you switch from a typical U.S. diet, about 28 percent of which comes from animal sources, to a vegan diet with the same number of calories, you'll cut your carbon-dioxide emissions by nearly 1.5 tons per year."