Jill Blakleyis an associate professor in the Department of Geography and Planning, University of Saskatchewan. Jill specializes in cumulative effects assessment and strategic environmental assessment, particularly related to regional-scale natural resource development programs. She serves as a member of the Parks Canada Strategic Environmental Assessment Continuous Improvement Program Committee and is lead editor of the forthcoming volume Handbook of Cumulative Impact Assessment (Northampton, MA: Edward Elgar Publishing Inc, 2021). Her work to establish principles and a process for regional strategic environmental assessment is endorsed by the Canadian Council of Ministers of the Environment, and has been applied by Transport Canada, the Wildlife Conservation Society (Canada), Alberta Environment and Parks, and Fisheries and Oceans Canada, among others. Jill is currently synthesizing lessons from more than fifty cases of regional assessment across Canada to foster best practices in cumulative effects assessment.