He received his Ph.D. degree in atmospheric sciences in China in July 1999 and then worked at UNL since December 1999. His research interests encompass past, present, and future climate changes and impacts using global and regional climate models and advanced statistical methods. More specifically, his research can be summarized in the following three areas: 1) climate changes and physical mechanisms on regional and continental scales; 2) climate change and its impacts on water sustainability and agriculture; 3) paleoclimate change and variability.