The Colorado Supreme Court has ruled that a climate lawsuit filed by the City of Boulder and Boulder County against ExxonMobil and Suncor Energy can proceed. The lawsuit alleges that the fossil fuel companies are responsible for climate change and includes claims of deception and public nuisance. ExxonMobil and Suncor had sought to dismiss the case, but the court rejected these efforts, allowing the litigation to move forward. This decision marks another legal victory for climate plaintiffs in Colorado, as courts increasingly address the accountability of oil majors in climate-related cases.