Dr. Tom Gleeson, University of Victoria (IMAGE) University of Victoria Caption Dr. Tom Gleeson of the University of Victoria, hydrologist and lead author of "The global volume and distribution of modern groundwater"in Nature Geoscience. Credit University of Victoria Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.