When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication occurs when too many nutrients enter a body of water, increasing the amount of ...

The Milepost 7 tailings basin photographed from a helicopter in 2010. Pictured beyond the basin is Silver Bay, the Northshore Mining processing plant, and Lake Superior. (Provided by Lori Andresen) ...

Attorney General Lori Swanson announced that Minnesota and other Great Lakes border states won a case against the Environmental Protection Agency over ballast water discharge regulations. This ...

Lake Victoria is so massive that it is shared by three countries, has a larger surface area than many countries, and is home ...

Lake Superior alone holds 10 percent of the world's readily available freshwater, and by surface area is the world's largest freshwater lake. This immense lake, however, is facing a major threat of ...

Grand Traverse Bay's pollution is chlorinated dioxins and ... waterbird nesting areas on the St. Marys River and Lake Superior. The contrasts were stark: Nonviable embryos were two to nearly ...

Lake Superior alone holds 10 percent of the world's readily available freshwater, and by surface area is the world's largest freshwater lake. This immense lake, however, is facing a major threat of ...

Gulls and terns studied in known polluted shoreline areas had a host of worse health and reproductive outcomes than those in nonpolluted areas.