Dr. Tu received his Ph.D. and M.Phil. degrees in Earth and Environmental Sciences (Geography Specialization) from the Graduate Center of The City University of New York, and his M.E. and B.S. in Earth Science from Nanjing University, China. He also received a Certificate in Urban Environmental Management and Sustainable Development from the Institute for Housing and Urban Development Studies, The Netherlands. He had worked as an environmental scientist in Nanjing, China for five years before coming to the U.S.