My Decisions Impact Michigan, the U.S. and the World: You may not know it, but decisions you make every day can have an impact on the rest of the world. We can see this by looking at the pollution on Isle Royale, an island and International Biosphere Reserve located in Lake Superior. Explore this web module to learn about different pollutants found on Isle Royale, how they got there, and what you can do to reduce pollution. Supports Energy Resources Unit Lessons 4,5, 6 and 8.