Jay Curtis Stager (born July 29, 1956) is an author, radio co-host, musician, and professor of natural sciences at Paul Smith's College in the Adirondack Mountains of upstate New York, where he holds the Draper-Lussi Endowed Chair in Lake Ecology and Paleoecology. He is also a research associate with the Climate Change Institute at the University of Maine, Orono. His research in Africa and the Adirondacks has focused on the use of lake sediment cores to reconstruct past climates, evolution, and human impacts on ecosystems over centuries to thousands of years. In addition to investigating environmental histories of lakes in Africa, South America, and the United States, he has studied acid rain recovery in Adirondack lakes, human impacts on Thoreau's Walden Pond, fish evolution in Uganda, m