Are you driving less than you used to? As Dubner blogged last week, Americans logged 11 billion fewer miles on the road in March of this year than they did in March 2007. That contributed to a cut of 9 million metric tons of carbon dioxide emitted by the U.S. in the first quarter of 2008.
I’m not sure we can argue that high gas prices are good for the environment. The reason they are higher is because of increased demand from developing nations with burgeoning middle classes — who now drive cars. Oil is being…
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