Caption: Ice breakup on Lake Mendota in Madison, WI during the Spring of 2000. Lake Mendota is one of the lakes with 150-year ice formation and breakup records included in the journal Science study.
Photo by: John Magnuson
Date: 2000
High-resolution 300 DPI JPEG

Caption: Candled ice during breakup of Lake Kallevesi in Finland during the Spring of 1997. Lake Kallavesi is one of the lakes with 150-year ice formation and breakup records included in the journal Science study.
Photo by: Esko Kuusisto
Date: 1997
High-resolution 300 DPI JPEG

Caption: John Magnuson, professor of limnology, sitting along the Lake Mendota shoreline.
Photo by: Jeff Miller
Date: November 1999
High-resolution 300 DPI JPEG