Great Lakes Champions: Grassroots Efforts to Clean Up Polluted Watersheds

The Great Lakes—containing one-fifth of the standing freshwater on earth, covering some 94,250 square miles with a combined 10,210 miles of shoreline—have suffered greatly from human use and abuse since the advent of the commercial fur trade in the late 1600s. Logging destroys or degrades habitats, urbanization and industrialization pour human and industrial wastes into the water, fertilizers flowing off farm fields feed algae that suffocate other creatures, and ships bring in exotic specie...