Decades of unregulated industrial waste dumping in areas of the Great Lakes have created a host of environmental and wildlife problems.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/using-lake-michigan-turtles-measure-wetland-pollution
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wetlands
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution-control
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution