Supreme Court Narrows EPA’s Authority To Regulate Power Plant GHGs

The Supreme Court is restricting EPA’s authority to regulate greenhouse gases from existing power plants, the second-largest sector of emissions in the country, finding under the “major questions” doctrine that the Obama EPA’s standards that relied on generation shifting were unlawful under the Clean Air Act. The 6-3 opinion , issued June 30 and written by Chief Justice John Roberts, holds that the Obama EPA’s Clean Power Plan unlawfully relied on generation shifting to set standards for coal- and gas-fired...