Dr. Christman is a human-environment geographer with specialization in environmental change, especially as it impacts human health and wellbeing. His scholarly research applies the principles and methods of land systems science, interdisciplinary vulnerability analysis, field-based and modeled landscape ecology, and the application and development of geospatial analytical tools, in order to quantify patterns of change across both the natural and social landscapes of the Earth and to understand the associated drivers of these changes and their associated impacts.  He is currently collaborating on projects funded by the US Department of Health and Human Services Assistant Secretary of Preparedness and Recovery, the National Institute on Aging, and the New Jersey Department of Community Affairs, with researchers at the Institute for Successful Aging at the Rowan School of Osteopathic Medicine and the Rowan School of Engineering to understand the impacts of SuperStorm Sandy on the vulnerable communities of New Jersey.