Suncor Energy (U.S.A.) Inc., et al., Petitioners v. County Commissioners of Boulder County, et al.

  1. February 23, 2026

    High Court Crafts Escape Hatch In Review Of Climate Torts

    The U.S. Supreme Court on Monday agreed to determine whether a climate change lawsuit against fossil fuel companies can proceed in state court, but the justices also created a potential off-ramp by questioning whether they can actually hear the case.

  2. February 23, 2026

    Justices Will Mull Future Of State Climate Torts

    The U.S. Supreme Court is poised to determine the future of climate change tort litigation brought by state and local governments against fossil fuel companies, agreeing Monday to review whether a lawsuit against Exxon Mobil Corp. and Suncor Energy can proceed in state court.

  3. January 02, 2026

    4 Colorado Cases To Watch In 2026

    In 2026, Colorado will be center stage for legal fights surrounding the guardrails of generative AI platforms, a second trial will take place to determine if the ethylene oxide output of a medical sterilization company caused some Lakewood residents to develop cancer, and the state will continue its fight to stop the move of Space Command's headquarters. Here, Law360 looks at four cases to watch in the state.

  4. November 12, 2025

    Boulder Fights Exxon's High Court Bid To Sink Climate Suit

    The city and county of Boulder, Colorado, are asking the U.S. Supreme Court to reject Exxon Mobil Corp. and Suncor Energy Inc.'s request that it review the Colorado Supreme Court's decision to allow the city's climate change tort against the companies to proceed in state court.

  5. October 10, 2025

    Biz Groups, GOP Reps Ask Justices To Sink Colo. Climate Suit

    Business groups and over 100 Republican lawmakers are asking the U.S. Supreme Court to reverse a decision by Colorado's top court allowing Boulder's climate change tort against Exxon Mobil Corp. and Suncor Energy Inc. to proceed in state court.

  6. September 12, 2025

    Trump Admin Asks Justices To Shut Down Climate Torts

    The Trump administration has urged the U.S. Supreme Court to put an end to climate change lawsuits brought by state and local governments against fossil fuel companies, arguing that such suits are barred by both the U.S. Constitution and Clean Air Act.

  7. September 09, 2025

    7 Enviro Cases To Watch At The Supreme Court

    The U.S. Supreme Court is considering a slew of environmental cases for the coming term, including jurisdiction disputes in pipeline and pollution cases, a challenge to a Washington state climate change law and Monsanto's bid to undo a $1.2 million weed killer cancer award.

  8. August 08, 2025

    Exxon, Suncor Urge Justices To Halt Colo. Climate Suit

    Exxon Mobil Corp. and Suncor Energy Inc. on Friday urged the U.S. Supreme Court to review the Colorado Supreme Court's decision allowing the city and county of Boulder's climate change tort against the companies to proceed in state court, arguing that the localities' claims are preempted by federal law.