Jinsong Chen is a geological staff scientist at the Lawrence Berkeley National Laboratory. He received a B.Eng. (1988) in water-resources engineering, a B.S. (1988) in applied mathematics, and an M.Eng. (1990) in hydrology from Tsinghua University in China. He also received an M.S. (1997) in environmental fluid mechanics from Georgia Institute of Technology, an M.A. (2001) in statistics, and a Ph.D. (2001) in environmental engineering from the University of California at Berkeley. He worked in Tsinghua University from 1990 to 1995 and was a postdoctoral fellow at the University of California at Berkeley and at the Lawrence Berkeley National Laboratory from 2002 to 2003. Since 2004, he has worked as a geological scientist in the former Earth Sciences Division, currently with the Energy Geosciences Division.