As President George W. Bush stood in a Michigan power plant last week defending his record on air pollution, critics cranked up the amperage. Bush is "gutting" clean-air protection, Senator James Jeffords pronounced. Environmental lobbyists asserted that air pollution is rising at runaway levels. Things are so far gone, asserted Senator and presidential candidate Joe Lieberman, that Bush has "the worst environmental record in history." Worse than Genghis Khan!
Yet nothing you hear about worsening air pollution is true.
Air pollution is declining under Bush, just as it declined under Bill Clinton. With the exception of greenhouse gases, trends in air...