Christopher Morrison is an Assistant Professor of Epidemiology at the Columbia University Mailman School of Public Health who specializes in spatial epidemiologic methods. His research, funded by the U.S. National Institutes of Health, seeks to understand how social and physical environmental conditions affect population health, particularly injuries, alcohol use, and alcohol-related harms. His recent work has examined associations between ridesharing services (such as Uber) and motor vehicle crashes, bicycle infrastructure and bicycle crashes, and firearm laws and firearm violence. Dr. Morrison previously worked as an Associate Research Scientist at the Prevention Research Center of the Pacific Institute for Research and Evaluation in Berkeley, California, and he completed a Postdoctoral Fellowship in the Penn Injury Science Center at the University of Pennsylvania. He holds a Ph.D. in epidemiology from Monash University, Australia.