Is the bay of Green Bay clean?
Every summer, Wisconsin’s Green Bay in Lake Michigan suffers from a large ‘dead zone. Imagine: an area under Green Bay’s surface so low in oxygen that it can’t support life. The cause? Algae fueled by runoff pollution that flows into the bay. Dead zones are not a direct threat to humans, but they are extremely harmful to fish, crabs, oysters, and other aquatic animals that humans rely on for seafood and livelihoods. Green and brown material floats atop green water.