He received his B.S. degree in geography and M.S. degree in remote sensing from Beijing Normal University and his Ph.D. degree in environmental sciences from University of Rhode Island. His research interests lie in the applications of geospatial technologies including remote sensing, GIS, geovisualization, spatial analytic tools, and integrated assessment modeling to understanding the problems of environmental change and their potential solutions for a sustainable environment. Currently, He is working in research areas concerning sustainability.