Helen is a postdoctoral scholar with the CoRE lab. She holds a PhD in Earth and Planetary Science and taught HS Physics and Chemistry. Her scientific focus is quantifying neighborhood-scale emissions of CO2 and PM2.5. As a high school teacher, Helen led her students in an air monitoring campaign in a successful grassroots effort to halt the installation of a crude oil terminal in the neighborhood in which many of her students lived. She has led the OTACA teacher professional collaboration for three years.