The Obama administration scored a third legal victory in less than a month in its fight to cut air pollution as regulators prepare rules to reduce emissions from power plants. In a unanimous decision, the U.S. Court of Appeals in Washington said the Environmental Protection Agency was within its discretion to tighten standards on fine particulate matter, or soot, from coal power plants, refineries, manufacturers and vehicles. The court struck down a challenge by the National Association of Manufacturers , which said the rule overreached. The administration has now defeated challenges to pollution rules three times since mid-April, as the Supreme Court and the U.S. Court of Appeals tossed aside industry objections and gave the EPA broad leeway to set standards. “Time after time, courts have found that EPA’s clean air standards are solidly based in science and the law,” Peter Zalzal, an attorney with the Environmental Defense Fund, […]