Ian Clark is an emeritus professor in the Department of Earth and Environmental Sciences at the University of Ottawa. He completed a bachelor of science in earth sciences and a master of science in hydrogeology at the University of Waterloo followed by his doctoral degree at the Université de Paris-Sud (Orsay) in isotope hydrogeology and paleoclimatology. Since his earliest work on geothermal systems in western Canada, Dr. Clark's research focuses on the integration of geochemistry and isotopes to address questions on the origin, age, and geochemical history of groundwater and solutes in natural and contaminated settings. He and his colleagues recently established the Advanced Research Complex for geosciences at the University of Ottawa hosting labs for accelerator mass spectrometry, stable isotopes, noble gases and geochemistry.