Research under the U.S. Climate Change Science Program is sponsored by 13 federal agencies:

1. Agency for International Development
2. Dept. of Agriculture
3. Dept. of Commerce, National Oceanic & Atmospheric Admin. (also, National Institute of Standards and Technology)
4. Dept. of Defense
5. Dept. of Energy
6. Dept. of Health and Human Services, National Institutes of Health
7. Dept. of State
8. Dept. of Transportation
9. Dept. of the Interior, US Geological Survey
10. Environmental Protection Agency 
11. National Aeronautics & Space Administration
12. National Science Foundation
13. Smithsonian Institution

Detailed information is available on agency activities under the US Global Change Research Program.