The U.S. Supreme Court recently heard oral arguments in Utility Air Regulatory Group v. Environmental Protection Agency. The case will determine how far EPA can extend its regulatory overreach, to control “climate changing” carbon dioxide from power plants and other facilities – by ignoring the Constitution’s “separation of powers” provisions, rewriting clear language in the Clean Air Act, and disregarding laws that require the agency to consider both the costs and benefits of its regulations and what it is regulating.
