There's more to it than that. You are sheltered from the realities behind your supermaterialistic lifestyle. The corporate-controlled media, which includes all of the textbooks, see to it. The vast majority of the damage done to the planet by cars results from their mining and refining and manufacture, from the roads, and from the fuel infrastructure. For instance: To even begin the production of steel, you need a coal mine, an iron ore mine, and a limestone quarry... What comes out of their tailpipes is almost irrelevant compared to the destruction I have barely touched upon above. But the corporate-sponsored environmental movement can't tell you the above or they would lose their funding. Recycling does more harm to the planet than just throwing things in landfills. It is very hard to make eggs out of an omette, and the industries involved are quite destructive. That's why recycled paper, even with massive subsidies, is still much more expensive than new paper. If you will just open your eyes and mind you will see through their propaganda. They want you to believe that billions of people can live supermaterialistic lifestyles and the the Wonders of Technology will find a way to do that without destroying the Nature we are dependent on. They lie. And then people who mistakenly trust them and believe what they are saying is true, innocently spread their propaganda. Many members of the environmental movement really believe they are saving the planet. Except that 35+ years of NEO (Near-Earth-Orbit) satellite images don't lie. And they reveal the simple fact that every year since the first Earth Day, we have seriously damaged more of the Earth than we did the year before, and that the rate is increasing radically with China, Brazil, Russia, and India joining the Industrial-Capitalist-Empire. We are in very serious trouble, but all the 'environmentalists' want us to do is buy high-tech stuff and argue about Global Warming. Which is simply insane. Littlefoot "The greatest fine art of the future will be the making of a comfortable living from a small piece of land." -- Abraham Lincoln