US Supreme Court Ruling Limits EPA Authority To Regulate Carbon Emissions Under The Clean Air Act

The Supreme Court of the United States recently issued the most significant environmental decision of this term in West Virginia v. Environmental Protection Agency (EPA), which was a challenge by West Virginia and multiple other interested parties regarding the scope of EPA's authority to regulate greenhouse gas emissions from the U.S. energy sector. In a 6-3 ruling, with Chief Justice John Roberts writing the majority opinion, the court found that EPA had overstepped its statutory authority under the Clean Air Act when the agency issued regulations on utilities requiring system-wide decreases in the use of fossil fuels to generate electricity in favor of "greener" energy, such as wind and solar energy — a process called "generation shifting." In a court term filled with numerous consequential and controversial issues, the decision in West Virginia v. EPA has sparked significant public debate. For the Biden administration, climate change policy will continue to be a