National Public Radio: The Supreme court has ruled against an Obama administration effort to limit toxic mercury emissions from power plants, saying the costs of compliance with regulation should be taken into account.
In a 5-4 decision, the court sided with industry and 23 states that challenged the Environmental Protection Agency over the rules for oil- and coal-fired utilities, which the EPA estimated would cost $9.6 billion dollars annually. The states and industry groups said the cost estimate far outweighed the...