Stephen R. Carpenter

Stephen Russell Carpenter is an American lake ecologist who focuses on lake Eutrophication or the buildup of algae in lake ecosystems. "Eutrophication is a significant environmental problem that can impact humans on a recreational, economic, and even public health level,” says Carpenter, “and it's likely to intensify in the coming decades due to increases in human population, demand for more food, land conversion, and fertilizer use."