MEIC is a nonprofit, nonpartisan environmental advocate. Its mission is to protect and restore Montana's clean and healthful natural environment. Its most significant activities include: monitoring and influencing Montana state government actions (including using litigation as a last resort); educating the public about the environment and environmental issues; and helping other nonprofit organizations with similar concerns. MEIC works on a wide range of environmental issues including: global warming and climate change; energy policies and promoting renewable energy; air pollution; water pollution; hardrock and coal mining; local land use planning and development; management of state-owned lands; and defending Montanans' rights to a clean and healthful environment and to participate in government. MEIC's financial support comes from its members and other nonprofit organizations.