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David T. MacLeod

Senior Environmental Specialist

Environment & Energy Division,

City of Toronto

David has been the City of Toronto's staff policy and research lead on the issue of climate change and extreme weather risk management since 2007.  He provides leadership engagement of various city-owned and non city-owned infrastructure sectors in climate change risk assessment and management.  His work involves understanding infrastructure system interdependencies and risks of cascade failure, in areas such as roads, railways, telecommunications, electricity and food supply chains. 


David is actively involved with the C40 Network of Cities working to combat climate change. Amongst his peers from other climate progressive cities around the world, he is considered an international thought leader in the areas of infrastructure system interdependencies and climate risk disclosure.  


David is currently involved with developing climate related financial disclosure in financial statements and developing ways to ensure climate considerations are taken into account in municipal budgeting processes.  


Prior to joining the City, for 17 years David was an environmental management consultant and Certified Environmental Auditor for over a dozen industry sectors across Canada and the northeast USA.  Much of this work took place in northern or rural parts of Canada.  David has taught courses at the university masters level on environmental management systems and urban climate adaptation. He holds a MA in Environmental Studies from the University of Toronto and a BSc in Geography from Carleton University.  


David is not a stranger to the North of Canada.  The focus of his undergraduate degree was on Northern Canadian environmental issues. He enjoys escaping Toronto on visits with family and friends to the Near North for canoeing, hiking and sailing and skiing.  

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Julie Cayley B.Sc.,P.Ag.

Executive Director,

Severn Sound Environmental Association

Julie Cayley B.Sc., P.Ag.,  is the Executive Director of the Severn Sound Environmental Association (SSEA) in Port McNicoll Ontario, back to her roots in Great Lakes water quality.  The SSEA is a unique watershed based Joint Municipal Services Board, a partnership of 8 North Simcoe Municipalities.  Julie has a significant background in creating successful connections within Government, Industry and the Agriculture, Conservation and Environmental Communities and has worked for Government (OMAFRA) and NGOs (Ducks Unlimited Canada) as well as running her own consulting business.   She specializes in Environment, Conservation with agriculture and rural municipal partnerships and is a Government and Industry relations expert. She is a Professional Agrologist, has a B.Sc. in Environmental and Resource Science from Trent University and is a graduate of Class 8 of Ontario’s Advanced Agricultural Leadership Program (AALP).  Julie was recently appointed by Minister Yurek to the Muskoka Watershed Advisory Group.  Julie was the first woman to Chair the North East Agriculture and Biological Engineering Community and has a passion for developing opportunities for leadership in her communities. She enjoys her time with her family and horses on their farm in Oro-Medonte.