The Montana Public Service Commission declined to make a declaratory ruling incorporating climate change into its regulatory oversight of the energy sector.

A coalition of 41 businesses and nonprofits submitted a petition to the PSC in March of 2024 in the wake of a state district court finding in Held v. Montana that the state’s right to a “clean and healthful environment” incorporates a right to a “stable climate system.”

The petition before the PSC had two parts. One asked the agency to adopt rulings “affirming its obligation to consider the adverse climate impacts of greenhouse gas emissions under the Montana Constitution and the statutory and regulatory framework governing its decision making.” The other included a specific rule giving the commission a framework for weighing the soc

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