1. Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, Colorado 80303, USA
2. TERC, Cambridge, Massachusetts 02140, USA
3. Science Education Resource Center (SERC), Carleton College, Northfield, Minnesota 55057, USA
4. National Center for Science Education (NCSE), Oakland, California 94609, USA
5. Climate Program Office, National Oceanic and Atmospheric Administration (NOAA), Silver Spring, Maryland 20910, USA