And other unintended consequences of strict fuel-economy standards. If something seems too good to be true, it usually is. Such is the case with President Barack Obama's proposed national fuel efficiency standards for cars and trucks and a new tailpipe standard for C02 emissions. The national press has uncritically reported that the new standards will make cars "cleaner." In fact, the rules could impose substantial costs in terms of urban air pollution and human life. The standards are designed to reduce C02 emissions from cars, with the twin goals of addressing climate change and reducing dependence on imported energy. Carbon...
