Colette Heald is an Associate Professor in the Departments of Civil and Environmental Engineering & Earth and Planetary Sciences at MIT. She received her undergraduate degree in Engineering Physics from Queen’s University in Canada in 2000, and her PhD in Earth and Planetary Science from Harvard University in 2005. She held the NOAA Climate and Global Change postdoctoral fellowship at the University of California Berkeley from 2006-2007. Colette heads a research group in global atmospheric chemistry that addresses issues in long range transport of pollution, the interactions between the biosphere and atmosphere and the evolution and impacts of atmospheric particles. A particular focus of their work is using observations at all scales (surface, aircraft and satellite) to investigate and improve global models. Colette is a member of the GEOS-Chem model Steering Committee (http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html) and the Community Earth System Model Advisory Board (http://www.cesm.ucar.edu/management/CAB/).