Dr. Liu received her Ph.D. in hydrogeology from the University of Alabama, U.S. in 2007, her Master in Ecology from Chinese Academy of Agricultural Sciences in 2002, and her Bachelor in Environmental Sciences from Shanxi University in 1999. She was a postdoctoral fellow at PKU from 2007 to 2009. Since 2009, she has been a research scientist in the Institute of Water Sciences. She has been chairing the Water Ethics working group of UNESCO since 2008. Dr. Liu’s major study areas include groundwater flow and transport modeling, basin-scale groundwater management, and water-energy nexus. She has been the principal investigator of research projects funded by the National Natural Science Foundation of China, China Geological Survey, and National Geographic Society. She has also been a key participant in research projects supported by UNESCO, Ministry of Science and Technology, Ministry of Education of China, Ministry of Environmental Protection and other funding agencies. She has published more than 40 publications including two books (one translated) and four book chapters.