Generally revise Montana environmental policy act to implement court decision

This bill amends Montana's Environmental Policy Act to comply with a state Supreme Court ruling, requiring state agencies to evaluate greenhouse gas emissions in environmental reviews. It removes previous language that prohibited considering greenhouse gases and mandates that agencies analyze alternatives to proposed projects, including a meaningful no-action alternative that assesses environmental, social, and economic impacts if a project is not completed. The changes also require agencies to examine how regulations affect private property rights and ensure that environmental assessments include customer fiscal impact analyses where applicable. These provisions apply to all state agencies except the legislature and affect the process for reviewing state-sponsored projects that could impact Montana's environment.