The agency has failed to properly weigh the costs, even though the Supreme Court says it must.
On Monday President Obama is announcing the final version of his Clean Power Plan, the carbon-emission rules for power plants to secure his climate-change legacy. The plan is designed to hobble electricity generators much as the Environmental Protection Agency’s 2012 rule to reduce mercury and other emissions has harmed the coal industry.
Fortunately for consumers, on June 29 the Supreme Court slapped down the agency’s 2012 rule. In Michigan v. EPA, the court said the agency failed its legal obligation to compare the cost of its mercury standards with the benefits.