Can't afford a Prius? Eat beans instead.

From today's Salon.com interview with Peter Singer, author of "The Way We Eat":

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.