Link: Carbon for Clunkers

Was spending $1 billion a particularly cost-effective way to achieve those CO₂ reductions? Probably not. Assuming the above calculations are correct and that each consumer keeps his or her car for 10 years, then the total savings should be a little less than 5.7 million tons of carbon dioxide. That means each ton of carbon dioxide would be worth about $175.53 to the U.S. government. As the Washington Policy Center pointed out on its blog in June, a ton of CO₂ currently goes for about $17.50 on the European Climate Exchange.