1. Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9 West, Palisades, New York 10964, USA
2. Education Development Center, Inc. (EDC), 43 Foundry Avenue, Waltham, Massachusetts 02453, USA
3. Center for International Earth Science Information Network (CIESIN), 61 Route 9 West, Palisades, New York 10964, USA
4. Dwight Morrow High School, Englewood, New Jersey 07631, USA