Slate Mag-10/23/06 "In the United States, two-thirds of the oil consumed goes toward powering vehicles. Passenger cars alone are responsible for 25 percent of the greenhouse gases we produce." Re: Tips on Driving, Flying, and Pitfalls of Environmental Markets"-Click on the "Slate piece" for commentary on the Chicago Climate Exchange and possible Pitfalls of these markets: http://www.slate.com/id/2151794/
