Professor Lee’s research and teaching concern the interactions between the terrestrial biosphere, the atmosphere and anthropogenic drivers. His areas of interest include boundary-layer meteorology, air pollution meteorology, meteorological instrumentation, remote sensing, carbon cycle science and policy, and China's environmental management. One focus of his research activity is on greenhouse gas fluxes in the terrestrial environment, including forest, cropland and man-made reservoir. Other ongoing projects deal with isotopic tracers in the cycling of carbon dioxide and water vapor, farmland management for carbon sequestration in China, and biogeochemical and biophysical effects of land use on the climate system. He is Sara Shallenberger Professor of Meteorology, holds a guest professorship in the Chinese Academy of Sciences and is the editor-in-chief for the international journal Agricultural and Forest Meteorology.