Suncor Energy and Exxon Mobil face a major climate lawsuit at the U.S. Supreme Court. The city and county of Boulder, Colorado, initiated Suncor Energy v. County Commissioners of Boulder in 2018. The lawsuit alleges these oil companies contributed to climate change and misled the public regarding environmental impacts.

The Supreme Court scheduled oral arguments for October 5th. The central issue involves whether the case belongs in state or federal court. This jurisdictional ruling will set a precedent for numerous similar climate lawsuits across the United States. A decision against Suncor could expose the company to significant financial liabilities.