Colin A. Cooke,^* Prentiss H. Balcom,^** Charles Kerfoot,^*** Mark B. Abbott,^**** Alexander P. Wolfe<sup>*****


*</sup>Colin A. Cooke () is a Postdoctoral Associate at the University of Sydney. His research exploits the geochemical record preserved in lake sediments to understand natural and anthropogenic drivers of recent biogeochemical change. Address: School of Geosciences, University of Sydney, Sydney, NSW 2006, Australia. e-mail: colin.cooke@sydney.edu.au
^**Prentiss H. Balcom is a Research Assistant at University of Connecticut. His research interests include the biogeochemical cycling of mercury, methylmercury, and trace metals in the environment. Address: Department of Marine Sciences, University of Connecticut, Groton, CT 06340, USA. e-mail: prentiss.balcom@uconn.edu
^***Charles Kerfoot is a Professor at Michigan Technological University (formerly the Michigan School of Mines). He has over 125 published articles on mining impacts, paleoecology and aquatic ecology. Address: Department of Geological and Mining Engineering and Sciences, Michigan Technological University, Houghton, MI 49931, USA. e-mail: wkerfoot@mtu.edu
^****Mark B. Abbott is an Associate Professor at University of Pittsburgh. Mark is a stratigrapher who uses lake sediments to study climate and environmental history. Address: Department of Geology and Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260, USA. e-mail: mabbott1@pitt.edu
^*****Alexander P. Wolfe is a Professor at the University of Alberta where he studies environmental change, primarily using lacustrine archives. Address: Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada. e-mail: awolfe@ualberta.ca