Last mentioned: Feb 24, 2026
Expected Ruling
Anticipated timeframe for a final Supreme Court decision on the preemption issue.
Expected Arguments
Anticipated timeframe for oral arguments before the Supreme Court.
SCOTUS Certiorari
The U.S. Supreme Court agrees to hear the oil companies' appeal to toss the suit.
SCOTUS Intervention
The U.S. Supreme Court officially agrees to take up the appeal from the oil companies.
SCOTUS Intervention
U.S. Supreme Court agrees to take up the companies' appeal to dismiss the case.
Federal Support
The Trump administration files a brief supporting the oil companies' bid for Supreme Court review.
Lower Court Ruling
Appellate courts rule that the litigation can proceed in state court rather than federal.
Lower Court Ruling
A lower court rejects the companies' motion to dismiss, allowing the case to proceed under state law.
Lower Court Ruling
A lower court allows the litigation to proceed under state law, rejecting company motions to dismiss.
Lawsuit Filed
Boulder, Colorado, sues ExxonMobil and Suncor for climate-related damages.
Lawsuit Filed
Boulder, Colorado, files suit against ExxonMobil and Suncor Energy over climate change impacts.
Lawsuit Filed
Boulder, Colorado officials sue Exxon and Suncor over climate change impacts.
The U.S. Supreme Court has agreed to hear an appeal from ExxonMobil and Suncor Energy seeking to dismiss a climate change lawsuit brought by Boulder, Colorado. This pivotal case could determine the viability of dozens of similar state-level lawsuits seeking billions in damages from the fossil fuel industry.
The U.S. Supreme Court has granted a petition by ExxonMobil and Suncor Energy to review a lower court ruling that allowed climate-related lawsuits from Colorado local governments to proceed. This decision marks a critical turning point for dozens of similar cases nationwide seeking to hold fossil fuel companies financially liable for climate change impacts.
The U.S. Supreme Court has agreed to hear a pivotal appeal by ExxonMobil and Suncor Energy seeking to dismiss climate change litigation brought by Boulder, Colorado. The ruling will determine if local governments can use state law to hold fossil fuel companies liable for climate-related damages, a decision that could neutralize dozens of similar cases nationwide.