Mary Nichols values innovation, partnerships and common-sense approaches to addressing the state's air issues. As Chairman of the California Air Resources Board, Nichols is moving ahead on the state's landmark climate change program (AB 32), steering the Board through numerous efforts to curb diesel pollution at ports and continuing to pass regulations aimed at providing cleaner air for the San Joaquin Valley. Nichols has devoted her entire career in public and nonprofit service to advocating for the environment and public health.

In addition to her work at the Air Board, Nichols has served as Assistant Administrator for the U.S. Environmental Protection Agency's Air and Radiation program under President Clinton.