1 Department of Biology and School of Environmental Studies, Queen's University, Kingston, ON K7L 3N6, Canada. Electronic address: diane.orihel@queensu.ca.
2 Department of Biology and Water Institute, University of Waterloo, Waterloo, ON N2L 3G1, Canada. Electronic address: heidi.swanson@uwaterloo.ca.
3 Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada. Electronic address: erin.n.kelly@gmail.com.
A world-renowned scientist who combined his formidable intellect with passionate advocacy to address problems affecting global freshwaters and the people who rely on them, while empowering generations of diverse peoples to action.