US Supreme Court Hears Oil Companies' Challenge to State Climate Lawsuits

The U.S. Supreme Court began its new term Monday hearing arguments from ExxonMobil and Suncor Energy as they seek to block climate-related lawsuits filed by local governments in state courts.

The central case, Suncor Energy Inc. v. County Commissioners of Boulder County, involves a lawsuit brought by local officials in Colorado seeking compensation for the costs of climate change. According to Grist and The Guardian, the fossil fuel companies are arguing that federal law prevents state courts from hearing such claims, suggesting the issue belongs to Congress and the White House rather than individual states.

During nearly two hours of questioning, the justices appeared to find the matter complex. Grist reported that the justices showed unison on the difficulty of identifying legal liability for global climate impacts. Kannon Shanmugam, the attorney representing the oil companies, argued that Boulder's case is an attempt to use state law to regulate global conduct, which he described as an "unprecedented effort."

Justice Samuel Alito recused himself from the case, leaving eight justices to decide the matter. The Guardian noted that with only five conservative justices participating, the local governments would need to win over just one conservative justice to prevail, provided the three liberal justices side with them. Some observers noted the court focused more on the merits of the case than on whether they had the jurisdiction to hear it.

The outcome of this case is expected to impact more than two dozen similar lawsuits across the country. Inside Climate News reported that these claims seek potentially billions of dollars in damages. If the court sides with the industry, it could effectively end dozens of cases brought by state and local governments; however, if the court sides with Boulder, the litigation will proceed in state courts.

Background

Boulder, Colorado, first filed its case in state court against ExxonMobil and Suncor, a Canadian oil company, to force them to pay for damages caused by their products. The oil companies appealed to the Supreme Court to intervene, arguing that climate change matters should not be settled at the state level.