Michigan Tech Research Institute

Lake Michigan gets clearer, but it’s not all good news

Lake Michigan’s waters have dramatically cleared up in the past two decades, but researchers fear the changes could be hurting marine life. Several factors have made the water clearer, including reductions in agricultural and sewage runoff. But invasive mussels have played a bigger role, researchers say; there are trillions of them now, enough to filter all of Lake Michigan’s water…