A Big Moment for Federalism at the Supreme Court

Boulder’s climate lawsuit would return the U.S. to the era of the Articles of Confederation. The Supreme Court kicks off a new term Monday with a case ostensibly about climate change but with much bigger stakes. The real issue in Suncor Energy v. Boulder County is whether states and localities can turn federalism on its head to dictate policy for the rest of the country.Boulder and more than 30 other state and local governments have sued oil and gas producers for alleged damage caused by their global CO2 emissions. Boulder wants compensation for wildfires, the costs for mitigating pest infestations,...