Supreme Court opens its term with climate lawsuits
Suncor and ExxonMobil seek to have Colorado communities’ case dismissed.

Hearing listed for October 5; an overview of the issues before any ruling.
The U.S. Supreme Court is scheduled to hear Suncor Energy’s case against Boulder County authorities on Monday, October 5. The official day call allocates one hour of argument to this first case of the new term. [1]
Opposing positions
According to NPR, the communities seek to recover costs associated with climate damage. They accuse the companies of misleading the public about fossil-fuel risks. The companies seek dismissal, arguing that the response to climate change belongs to the federal government. [2]
Washington supports the petitioners
The U.S. government is participating in support of the companies: the day call gives it ten minutes, alongside twenty minutes for the petitioners’ lawyers and thirty for the communities. This allocation describes the planned procedure, not a ruling on corporate liability. [1]
Implications beyond Boulder
Associated Press reports that the outcome could affect dozens of similar lawsuits and claims involving billions of dollars. Those amounts represent potential stakes; they are not damages already awarded. [3]
Perspectives compared
Sources and documents
- [1] U.S. Supreme Court — day call ↗October 5, 2026
- [2] NPR — Carrie Johnson / NPR Illinois ↗October 5, 2026, 4 a.m. Central
- [3] Associated Press — Lindsay Whitehurst / Local 10 ↗October 5, 2026, 12:10 a.m.