Donna Riley is a founding faculty member and Associate Professor in the Picker Engineering Program at Smith College, where she has been teaching thermodynamics for over 10 years. She received her B.S.E. in Chemical Engineering from Princeton University and a Ph.D. in Engineering and Public Policy from Carnegie Mellon University. Her technical research combines methods in engineering and the social sciences to characterize and communicate chemical risk. She seeks to integrate quantitative modeling of chemical risks (from sources to exposure endpoints) with an understanding of the ways in which human beliefs and behavior influence risk. Past projects have involved characterizing the risks of mercury use as part of religious and folk traditions in Latino and Caribbean communities, and developing improved consumer-product warnings. She is currently collaborating with chemists at Smith and the University of Massachusetts on developing a community-oriented air quality research lab. In 2005 Riley received a CAREER award from the National Science Foundation for implementing pedagogies of liberation, based on the work of Paulo Freire, bell hooks, and others, into engineering education. Aspects of critical pedagogies that are operationalized in Riley's classrooms include connecting course material to student experience, emphasizing students as authorities in the classroom, integrating ethics and policy considerations in the context of social justice, problematizing science as objectivity, and incorporating contributions from women, people of color, and people living in the global South.