
Justices probe whether Boulder's climate-deception suit against Exxon and Suncor can proceed
Suncor Energy v. Boulder County Commissioners drew a split bench on both jurisdiction and federal preemption
WASHINGTON — The U.S. Supreme Court opened its new term on October 5 by hearing Suncor Energy (U.S.A.) Inc. v. County Commissioners of Boulder County. Boulder is suing Exxon Mobil and Suncor in Colorado state court. It alleges the companies deceived the public about the climate effects of fossil fuels and seeks money damages under state tort law. The companies, backed by the Trump administration, say the Clean Air Act and the Constitution reserve interstate pollution for federal law. Justice Kavanaugh pressed that view. Justices Kagan and Sotomayor compared the suit to tobacco and opioid cases. Justices Thomas, Sotomayor and Jackson questioned whether the case is final enough for the Court to review. Justice Alito sat out, which raises the possibility of a 4-4 split that would leave Colorado's ruling in place. The Court will rule before the term ends. The result could affect dozens of similar municipal suits.
Why it mattersThe ruling will help decide whether state-law deception and tort claims can be used against energy companies, and it could set limits on state-court liability suits over interstate harms.


