Tingyin Xiao¹, Michael Oppenheimer¹, Xiaogang He² and Marina Mastrorillo³, (1)Princeton University, Woodrow Wilson School of Public and International Affairs, Princeton, NJ, United States, (2)Water in the West, Woods Institute for the Environment, Stanford University, Stanford, CA, United States, (3)Food and Agriculture Organization of the United Nations (FAO), Economic and Social Development Department, Rome, Italy