Discover the Size of Your Carbon Footprint

By By MARK RAHNER -- Thanks for killing the planet, dog owners. Well, that's a rough paraphrase of a New Zealand study that claims a medium-size dog leaves a larger ecological footprint than an SUV.In "Time to Eat the Dog? The Real Guide to Sustainable Living," authors Robert and Brenda Vale argue that resources required to feed a dog - including the amount of land needed to feed the animals that go into its food - give it about twice the eco...