Dr. Nancy Marley is a retired chemist from Argonne National Laboratory after working there for 18 years, and past Research Associate Professor at the Graduate Institute of Technology at the University of Arkansas at Little Rock. Together with Dr. Gaffney she was head mentor of the DOE Global Change Education Program for 15 years. Drs. Marley and Gaffney have been an active research team for over 28 years in the area of atmospheric and environmental chemistry.