Congress should reassert itself

While critics contend the U.S. Supreme Court decision limiting how the nation’s main anti-air pollution law can be used to reduce carbon dioxide emissions from power plants was a “gut punch;” it wasn’t. The Court appropriately threw the ball back to Congress to rectify.

By a 6-3 vote, the Court said that the federal Clean Air Act does not give the Environmental Protection Agency (EPA) broad authority to regulate greenhouse gas emissions from power plants that contribute to global warming.

Chief Justice John Roberts wrote that Congress must speak clearly on this subject. A decision of such magn...