WASHINGTON -- The Supreme Court on Monday passed up a chance to consider whether a lower court was wrong to rule that Southeastern California's Imperial Valley has serious air pollution problems.
A federal appeals court had ordered the Environmental Protection Agency to add the area to a list of communities with some of the worst air quality in the United States, a designation that will require it to spend more money controlling pollution.
Justices declined, without comment, to review the decision by the 9th U.S. Circuit Court of Appeals.
The action was a victory for the Sierra Club, which had challenged the EPA's determination that the valley would have satisfied the Clean Air Act if not for pollution sweeping across the border from Mexico.
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