Dr. Hanqin Tian is Schiller Institute Professor of Global Sustainability and Professor of Earth and Environmental Sciences. He has worked across the disciplinary lines of earth system science, ecology, biogeochemistry, hydrology, earth system modeling and data science. His research has covered a wide range of topics, including studies of climate change impacts, mitigation and adaptation at multiple scales from local to global. His current research interest focuses on the predictive understanding of anthropogenic and natural controls over major biogeochemical cycles (C, N and P) and greenhouse gases (CO2, CH4 and N2O) in the coupled human-earth system in the past, present and future. His research on global carbon and nitrogen cycles, and greenhouse gas emissions is at the leading edge of the field. Dr. Tian is elected Fellow of American Association for the Advancement of Science (AAAS) in 2016, American Geophysical Union (AGU) in 2020, and Ecological Society of America (ESA) in 2022. He was named an Andrew Carnegie Fellow (Brainy Award) in 2019.