Caption: Steve Carpenter, professor of zoology in the UW-Madison Center for Limnology, studies the impact of phosphorous on eutrophication in Lake Mendota and other Wisconsin lakes. Eutrophication occurs when nutrient-rich soil washes into lakes and streams. Nutrients, such as those in phosphorus-rich fertilizers, stimulate the growth of algae and transform many of the world's lakes from clear freshwater reservoirs to soupy, weed-choked pools.
Photo by: Michael Forster Rothbart
Date: June 2005
300 DPI JPEG version

Caption: Stephen Carpenter, zoology professor.
Photo by: Jeff Miller
Date: September 2001
300 DPI JPEG version