Sub-forum "What's Up with Water & Soil?" held at BFA
Jeffrey Sachs,Director of the Earth Institute at Columbia University, speaks at a sub-forum with the theme of "What's Up with Water & Soil?" during the 2015 Boao Forum for Asia (BFA) in Boao, south China'sHainan Province, March 28, 2015. (Xinhua/Shen Hong)