Heather Maclean is an internationally recognized expert in the development and application of sustainable systems approaches. Her research focuses on systems-level evaluation of current and emerging energy systems, biobased products, transportation technologies and infrastructure systems, with attention to climate change and other environmental impacts. Within her research projects, she has worked with a large set of industries as well as governments in Canada and internationally. Results of her work have been incorporated into emerging technology designs, company operations, and regulations (e.g., California Low Carbon Fuel Standard). She is a Professor in the Department of Civil & Mineral Engineering at the University of Toronto.