René P. Schwarzenbach, PhD, is a Professor em. of Environmental Chemistry at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland.
Philip M. Gschwend, PhD, is Full Professor of Civil and Environmental Engineering at the Massachusetts Institute of Technology in Cambridge, Massachusetts.
Dieter M. Imboden, PhD, is a Professor em. of Environmental Physics at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland.