"Sierra Club has 150,000 members and supporters in Michigan. We are volunteer-led, and we actively coordinate our work on many levels. Sierra Club's ten regional volunteer Groups and Conservation Committees plus a very active student coalition in Michigan work for healthier communities at the local level. The Michigan Chapter works with volunteer leaders, state agencies and the legislature for better environmental stewardship statewide. Nationally, Sierra Club works to improve federal protections in the Great Lakes basin and across the country."