Tom Gleeson is a hydrogeologist interested in groundwater sustainability, regional- to continental-scale groundwater systems, groundwater-surface water interactions, and fluid flow around geologic structures. He addresses these varied research interests by integrating disciplines that are not often combined: field methods, numerical modelling, environmental chemistry, structural geology, GIS, and policy studies. He loves new ideas and experiences, food and yoga, and helping people and the world. Tom grew up building forts in Ontario, moved west to climb mountains, study geology, and work as a consulting hydrogeologist, and zigzagged across Canada for a doctorate at Queen’s University, a postdoc at the University of British Columbia, and his first faculty position at McGill University. He is part of the civil engineering program at the University of Victoria and an academic advisor to the POLIS Water Sustainability Project.