SUNY Brockport professor Joe Makarewicz will discuss the Great Lakes ecosystem at 7 p.m. on Thursday, November 8, at Brighton Town Hall, 2300 Elmwood Avenue. | Makarewicz’s presentation is part of a Rochester League of Women Voters event examining a position on Great Lakes protection developed by the League of Women Voters of Michigan. He’ll explain how the Michigan organization’s position will help Leagues in New York advocate for Lake Ontario. | The Michigan League has called for limiting use of fragile shoreline areas, preserving wild and pristine areas, guarding against inappropriate or excessive water use and destruction of wetlands, and non-toxic control and removal of invasive species. It’s trying to get all of the Great Lakes states to officially support its position. (The full position is available at http://www.lwvmi.org/positions.html.) | After the presentation, members of the Rochester chapter will discuss the League of Women Voters of Michigan’s position, says Georgia DeGregorio, president of the local chapter. The League of Women Voters of Michigan has asked New York’s state organization to support the position, and the state will likely take Rochester’s decision into consideration. | The Rochester League of Women Voters would also base future advocacy on the position, when relevant.