Heather L. MacLean

  • Professor
  • University of Toronto



Heather L. MacLean, Ph.D., P.Eng., is a Professor in the Department of Civil & Mineral Engineering at the University of Toronto and holds a joint appointment with the Department of Chemical Engineering & Applied Chemistry.

Her research is focused on systems-level evaluations of infrastructure systems and guiding their resilient development under carbon and other constraints. A particular focus has been life cycle environmental and techno-economic evaluations of current and emerging energy systems. Insights from her research have been incorporated into public policies and informed industry stakeholders.

Dr. MacLean is an internationally recognized expert in life cycle assessment, which she has applied to a large set of products, processes and projects. She has successfully led many research projects funded by numerous organizations (e.g., ExxonMobil, Ford Motor, General Motors, Natural Resources Canada, Ontario Power Generation, Suncor). Dr. MacLean is a Fellow of the Canadian Academy of Engineering (2017) and Engineering Institute of Canada (2016) as well as the 2017 recipient of the Dr. Albert E. Berry Medal from the Canadian Society for Civil Engineering for outstanding contributions to the field of environmental engineering in Canada.

She has served on industry and government advisory committees on energy systems in Canada and the U.S. She holds a Ph.D. in Civil Engineering and Engineering and Public Policy from Carnegie Mellon University, an MBA from St. Mary’s University and Bachelor of Engineering from Dalhousie University/Technical University of Nova Scotia.