



The Supreme Court opened its term hearing arguments over whether Boulder, Colorado, can sue Suncor Energy and ExxonMobil for allegedly misleading the public about climate change, in a case that's dragged through courts for eight years. Boulder says it has already spent millions on climate-related damage and expects to spend far more on mitigation.
Justices appeared split on how much room exists for such state lawsuits alongside federal Clean Air Act authority, with Kavanaugh citing a 'wall of precedent' for federal control of interstate pollution while Barrett and Gorsuch floated narrower state claims that might survive. Justice Jackson suggested the case is too undeveloped for the high court to rule definitively, and with Alito recused over financial ties to oil companies, a tie vote is possible.
More than one in four Americans live in a community with a similar pending lawsuit, meaning the ruling's reach extends well beyond Boulder.
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