National Institute of Environmental Health Sciences

The mission of the NIEHS is to "reduce the burden of human illness and disability by understanding how the environment influences the development and progression of human disease". NIEHS focuses on basic science, disease-oriented research, global environmental health, clinical research, and multidisciplinary training for researchers. Wikipedia*

On the C-SPAN Networks:
National Institute of Environmental Health Sciences has hosted 1 event in the C-SPAN Video Library; the first program was a 2009 Public Affairs Event.