Bull manages and implements large-scale programs for the National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration, United States Department of Agriculture, National Integrated Drought Information System, and other federally-funded programs. His experience includes working with tribal governments in disaster preparedness, teaching courses in coastal community resiliency for the National Disaster Preparedness Training Center, and supporting disaster recovery as a senior subject matter expert in 406 Mitigation for DR4339 in Puerto Rico.
Appointed by the U.S. secretary of commerce, Bull served on the National Climate Assessment Development and Advisory Committee, where he organized and co-led the 2014 Third National Climate Assessment. Appointed by the U.S. secretary of the interior. Bull also served as an inaugural member of the National Geospatial Advisory Committee, where he advised the development of the national geospatial policy.
In 2020, the Association of State Floodplain Managers recognized Bull as a certified floodplain manager.
Maldonado, J., T. M. B. Bennett, K. Chief, P. Cochran, K. Cozzetto, R. Gough, M. Hiza Redsteer, N. Maynard, K. Lynn and G. Voggesser. (2015). Engagement with Indigenous Peoples and Honoring Traditional Knowledge Systems: Lessons Learned and Recommendations for the Sustained U. S. National Climate Assessment. Climatic Change. DOI
Bennett, T. M. B., N. Maynard, P. Cochran, R. Gough J. Maldonado, K. Lynn, G. Voggesser, S. Wotkyns. (2014). Indigenous Peoples, Lands and Resources. The Third National Climate Assessment Report. A State of Knowledge Report from the U.S. Global Change Research Program.
Porter, M. and T. M. B. Bennett. (2013). Monitoring Change: SIPI Students Engage in Long-Term Ecological Research. Tribal College Journal of American Indian Higher Education.
Riley, R., P. Blanchard, R. Peppler, T. M. B. Bennett, and D. Wildcat. (2011). Oklahoma Intertribal Meeting on Climate Variability and Change; Summary Report. Norman, OK.