* Current affiliation: Department of Meteorology, The Pennsylvania State University, University Park, Pennsylvania
+ AAAS Science and Technology Policy Fellow, Washington, D.C
# Current affiliation: Engineering Systems Division, Massachusetts Institute of Technology, Cambridge, Massachusetts
@ Current affiliation: Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, Pennsylvania
Corresponding author address: Andrei Sokolov, Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, 77 Massachusetts Ave., E40-431, Cambridge, MA 02139. Email: sokolov@mit.edu
