The Associate Professor of global environmental change, Beijing Normal University. My research focusses on decadal climate variability, including the mechanisms and dynamics underlying the variability and its impacts on global and regional climates. I am also interested in paleoclimatology and reconstructions, and ecosystem response to climate change. I carried out a lot of original studies using observation and proxy data and simulations of earth system models. Specific interests include Atlantic multidecadal variability, Pacific decadal variability, ENSO, North Atlantic Oscillation, Indo-Pacific warm pool variability, and their impacts on global/regional rainfall and temperature and associated ecosystem responses.