A U.S. federal appeals court in Washington D.C. on Friday delayed regulations that would have limited emissions from coal plants. The court ruled that a January 1 implementation date for did not allow enough time for legal challenges to the regulations, which the Environmental Protection Agency handed down in July and place strict limits on sulfur dioxide and nitrogen oxide emissions from coal plants. The agency estimates that the rules would save between $120 and $280 billion in health care costs per year. The agency announced new limits to mercury emissions on December 21.
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