The U.S. EPA Friday announced tough new diesel pollution standards for the shipping industry (perhaps to distract us from Wednesday’s announcement of not-so-tough ozone standards.) The new standards for diesel trains and ships will begin to be phased in in 2015; when in full effect, they’ll require a 90 percent reduction in soot emissions and an 80 percent reduction in nitrogen oxide emissions. Says Frank O’Donnell of Clean Air Watch, “This is a rare case of the Bush administration doing something positive on air pollution.” That’s high praise.

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