Dr. Chelsea Rochman is an Assistant Professor at the University of Toronto in the Department of Ecology and Evolutionary Biology. She has her PhD in ecology with emphases on marine ecology, environmental chemistry and ecotoxicology. Her expertise is the sources, sinks and ecological implications of plastics and their associated cocktail of chemical contaminants in marine and freshwater habitats. Her research sites stretch from the world’s remote ocean “garbage patches” to wastewater treatment plants and landfills around the world. Chelsea served as an expert witness on microplastics during the California hearings on a bill to ban plastic microbeads. This bill passed with bipartisan support and inspired similar bills in the U.S. Congress and abroad. Dr.Chelsea supports Heir Cambria Bartlett in her work on plastics impact on our oceans.