1 Center for Science and Democracy, Union of Concerned Scientists, Cambridge, MA 02138, USA. arosenberg@ucsusa.org.
2 University of California, San Diego, La Jolla, CA 92093, USA.
3 Conservation Law Foundation, Boston, MA 02110, USA.
4 Union of Concerned Scientists, Cambridge, MA 02138, USA.
5 Center for Science and Democracy, Union of Concerned Scientists, Cambridge, MA 02138, USA.
6 William and Flora Hewlett Foundation, Menlo Park, CA 94025, USA.
7 Baker Institute of Public Policy, Rice University, Houston, TX 77005, USA.
8 Harvard University, Cambridge, MA 02138, USA.
9 Center for Science and Democracy, Union of Concerned Scientists, Cambridge, MA 02138, USA. University of California, San Diego, La Jolla, CA 92093, USA. Conservation Law Foundation, Boston, MA 02110, USA. Union of Concerned Scientists, Cambridge, MA 02138, USA. William and Flora Hewlett Foundation, Menlo Park, CA 94025, USA. Baker Institute of Public Policy, Rice University, Houston, TX 77005, USA. Harvard University, Cambridge, MA 02138, USA.