Great Lakes Areas of Concern rivers, and oceans causing pollution and buildup of sediment. Nonpoint source pollution is said to be the most problematic and hardest to reverse of the types of pollution because it is so hard to regulate and pinpoint where it originates. Many experts agree that nonpoint source pollution is the biggest concern facing the Great Lakes. With the increase of urbanization, a toll has been taken on the lakes in these areas. Lakes that once had stable ecosystems with the appropriate amount of plant life are now full of massive amounts of plants and algae that have been fed by excess
Great Lakes Aquarium executive director. Since 2008, a philosophy of continuous improvement has been adopted starting with a program called "The Three R's"; repair, replace or remove all defective exhibits from the exhibit floor. Plans for new exhibit galleries and expanded educational outreach are ongoing. GLA is a not-for-profit 501(c)3 organization. Great Lakes Aquarium The Great Lakes Aquarium opened in 2000 and is located on the Duluth waterfront. A 501(c)(3) private nonprofit, its mission is to inspire people to explore their connection to Lake Superior and waters of the world. Great Lakes Aquarium features animals and habitats found within the Great Lakes basin