Generally revise the Montana environmental policy act

This bill requires state agencies in Montana to conduct greenhouse gas assessments for proposed fossil fuel projects as part of their environmental reviews under the Montana Environmental Policy Act. The legislation clarifies that while agencies cannot deny permits based on greenhouse gas emissions, they must still analyze these emissions for fossil fuel activities to inform the public about potential impacts. The bill amends existing environmental review statutes to mandate this analysis for fossil fuel projects while maintaining that greenhouse gases will not be regulated through this process. State agencies conducting environmental reviews will follow updated guidelines that specify when greenhouse gas assessments are required versus optional.