Supreme Court to weigh challenge to Obama mercury air pollution rule

(Reuters) - The U.S. Supreme Court on Tuesday agreed to weigh a challenge by industry groups and some states to an Obama administration regulation intended to limit emissions of mercury and other hazardous pollutants mainly from coal-fired power plants.

In a blow to the administration, the justices said in a brief order they would review an April ruling by the U.S. Court of Appeals for the District of Columbia Circuit that upheld the rule.