The U.S. Army Corps of Engineers has released a report about options for keeping the Asian Carp from invading the Great Lakes.
The report focuses on the Chicago Area Waterway System, a network of rivers and waterways that link Lake Michigan and the Mississippi River. The report offers eight plans for preventing Asian Carp and other species from migrating between the Great Lakes and the Mississippi river basin. Some options involve placing physical barriers in the waterways at a cost of 18.4 billion dollars. Other potential steps include use of locks, electric barriers and water treatment to remove invasive species.