Ryan Zizzo MASc, PEng, LEED AP ND, is a professional engineer with over a decade of green building project management experience across Canada and Europe. He creates and implements sustainability strategies that help clients understand, track and reduce their environmental impacts and exposure to climate change risk. Focus areas include net zero strategies, green building certifications, embodied carbon life cycle assessment, and resiliency strategies. He previously worked for one of Canada’s leading green engineering firms, was a lecturer at Finland’s largest Technical Universities and has provided green building education seminars throughout Europe. Ryan holds engineering degrees from Queen’s University (BScEng), the University of Toronto (MASc) and is a LEED AP ND.

Ryan has a decade of experience leading green building solutions across Canada and Europe. As a professional engineer and project manager, he helps built-environment designers, owners, and operators meet their sustainability goals. His expertise ranges from internationally recognized green certifications such as LEED to local sustainability requirements like the Toronto Green Standard. He is also an expert in embodied carbon and life cycle assessment (LCA) methods, having taught graduate level courses on LCA and other green building concepts for two years at the largest technical university in Finland, the Metropolia University of Applied Science. Ryan has trained dozens of green building professionals through seminars organized by the national Green Building Councils in six European countries. Ryan was previously a Project Manager with Halsall Associates (now WSP), one of Canada’s leading green buildings engineering / certification teams. In this role, he contributed to some of Canada’s most prominent green buildings.

Leading European experience was achieved through the three years Ryan spent living and working in Helsinki, Finland. Through his own freelance consultancy, ZED Consulting, Ryan contributed to numerous Pan-Nordic and European projects and gained experience with innovative green tools being used to guide Europe’s green transformation. He was strongly involved with Climate-KIC, Europe’s largest public-private innovation partnership, through which Ryan contributed to leading sustainability teams in Frankfurt, Valencia, Copenhagen, and beyond.

Ryan is a frequent speaker and participant in green building events and programs. He is the Chair of the Carbon Leadership Forum's 150+ member Policy Focus Group and past-chair of Buildings Focus Group and is the Canada Green Building Council’s Zero Carbon Steering Committee embodied carbon expert.

Ryan holds a Bachelor of Science in Civil Engineering from Queen’s University, a Masters degree in Applied Science in Civil Engineering and Environmental Engineering from the University of Toronto, is a licensed Engineer in the Province of Ontario, and holds a LEED Accredited Professional designation in Neighbourhood Development.

Selected Governance

  • Chair of the Embodied Carbon Network’s 100+ member Policy Taskforce and past-chair of Buildings Taskforce
  • Zero Carbon Steering Committee, Embodied Carbon Expert – Canada Green Building Council
  • Member of Canada Green Building Council, and local Toronto Chapter
  • Participant, organizer, and alumni of multiple programs through Climate-KIC, Europe’s largest private-public partnership implementing the shift to the low-carbon economy


  • Canada’s new climate plan needs a consistent approach to net-zero buildings. ReNew Canada magazine. May/June 2021.
  • Life cycle GHG assessment of a building restoration: Case study of a heritage industrial building in Toronto, Canada. Journal of Cleaner Production. 2020.
  • Integrating Life-cycle Assessment (LCA) into Ontario’s Infrastructure Planning and Decision-Making. Three reports: 1) LCA on Completed Building Projects; 2) LCA for Transportation Infrastructure; 3) Considerations for Broader LCA Implementation. Ontario Ministries of Infrastructure and Transportation. 2018
  • Embodied Carbon of Buildings and Infrastructure: International Policy Review. Forestry Innovation Investment. 2017
  • Addressing Carbon Debt – Finding Emissions Reductions in Infrastructure Construction. ReNew Canada. 2017
  • Life Cycle Assessment for Building Renovations. Nordic Built Challenge Magazine. “Fremtidssikring af Velfærdsbyen”. June 2015
  • Green Buildings are not a Fad. Zagrebacka Banka (a leading Croatian bank). November 2014
  • Blue and White…and Green! Finland leads the Nordic countries with the most LEED and BREEAM certified buildings. Article featured on Green Building Council Finland website. September 2013
  • Getting to Carbon Neutral: A Guide for Canadian Municipalities. Contributing Author. Toronto & Region Conservation Authority. 2009


  • Building Community Resilience Centres at the YMCA of Greater Toronto. Building Lasting Change Event by Canada Green Building Council. October 2020.
  • Integrating Life Cycle Assessment into Infrastructure Planning and Decision Making. The Buildings Show / Construct Canada. (Toronto, Ontario). December 2019.
  • The Carbon Blind Spot: embodied carbon in construction. Turkstra Talks @ the University of Waterloo, Department of Civil and Environmental Engineering. (Waterloo, ON) November 2019.
  • The Growing Importance of Embodied Carbon. Green Building Baltics Conference. (Vilnius, Lithuania). November 2019.
  • Building Resilient Communities. Launch event for Toronto’s Climate Resilience Strategy. (Toronto, Ontario). June 2019.
  • Procuring low-carbon solutions. Federation of Canadian Municipalities Annual Conference. (Quebec City, Quebec). May 2019.
  • Embodied Carbon in Ontario’s Infrastructure. Presentation to Infrastructure Ontario. (Toronto, Ontario). March 2019.
  • Building Resilient Communities. Launch event for Toronto’s Climate Resilience Strategy. (Toronto, Ontario). June 2019.
  • Procuring low-carbon solutions. Federation of Canadian Municipalities Annual Conference. (Quebec City, Quebec). May 2019.
  • Canada Green Building Council, Zero Carbon Building Program, Embodied Carbon Roundtable. “Global embodied carbon policies”. (Toronto, ON). October 2018
  • Green Building Professional Course. “Life Cycle Assessment and Cost”. (Latvia and Lithuania). October 2018
  • Developing a Low-Carbon Canada through assessing the environmental impact of infrastructure projects using life cycle assessment. “Insights from recent LCAs on Canadian construction projects – gaps for considerations”. (Ottawa, ON). October 2018
  • Low Carbon Building Skills Event. “Embodied Carbon”. (Toronto, ON). September 2018
  • Carbon Smart Buildings Day. “Greener construction materials and processes”. (San Francisco, CA). September 2018
  • Energy Summit 2018. “Embodied Carbon, Global Policy Development”. (Vaughan, ON). May 30, 2018
  • University of Toronto, Department of Civil Engineering. Presentation for the graduate class: “Life Cycle Assessment and Sustainability of Engineering Activities”. (Toronto, ON). May 7, 2018
  • Engineers Canada. Why and How to Incorporate Climate Change Considerations into Public Infrastructure in Newfoundland and Labrador. “Professional Responsibilities and Legal Liability”. (St. John’s, NL). March 8, 2018
  • Integration of life-cycle assessment (LCA) into infrastructure decision-making. Ontario Ministry of Infrastructure. “Embodied Carbon Policy in Construction – International Best Practices”. (Toronto, ON). October 16, 2017
  • The Building Show. “Embodied Carbon Minimization Through Whole Building Life Cycle Assessment at New YMCA”. (Toronto, ON). November 30, 2017
  • Green Building Professional Course. “Life Cycle Assessment and Cost; and Green Building Materials”. (Montenegro, Estonia, Latvia, Lithuania). October 2017
  • British Columbia Institute of Technology (BCIT). “Embodied Carbon Minimization Through Whole Building Life Cycle Assessment at New YMCA”. (Vancouver, BC). September 21, 2017
  • University of Victoria, School of Civil Engineering. Environmental Seminar Series. “Embodied Carbon Minimization Through Whole Building Life Cycle Assessment at New YMCA”. (Victoria, BC). September 20, 2017
  • ICLEI Livable Cities Forum. “The Circular Economy: Creating Climate Resilient Economies” (Victoria, BC). September 19, 2017
  • Green Building Professional education webinar – Romanian Green Building Council. “Green Building Facades”. February 1-2, 2017
  • The Buildings Show – Construct Canada. “Lifecycle Assessment Application in LEED v4 and Envision® Framework”. (Toronto, ON). December 1, 2016
  • The Real Property Institute of Canada (RPIC) National Workshop. “Implications of Not Accounting for Climate Change Vulnerabilities”. (Ottawa, ON). November 15, 2016
  • The National Water and Wastewater Conference. “Municipal Legal Liabilities”. (Toronto, ON). November 13-14, 2016
  • Presentation to Ontario Ministries of Environment and Climate Change, Infrastructure, and Treasury Board Secretariat. “Life Cycle Assessment as a tool for low-carbon construction and its use in Ontario”. (Toronto, ON). November 9, 2016
  • ICLEI Living Cities Forum. “Codifying Resiliency: LEED’s new Resiliency Pilot Credits”. (Halifax, NS). September 12, 2016
  • Grey to Green Conference. “Reconceptualizing Green Infrastructure for Climate Change”. (Toronto, ON), June 2, 2016
  • Nordic Built: Active Roofs & Facades in Sustainable Renovation. “Evaluation Methods for Sustainable Renovations” (Copenhagen, Denmark). May 19-20, 2016
  • Green Building Professional education lectures. “Life Cycle Assessment & Costing, Green Design Principles, and Sustainable Materials & Resources”. Multiple presentations in 2014 and 2015 for Green Building Councils of: Estonia, Latvia, Lithuania, Romania, Croatia
  • European Models of Supporting Academic Entrepreneurship. “Encouraging Student Entrepreneurship: Success Stories from Finland”. (Wroclaw, Poland). May 2015
  • Seminar for property owners and managers. “LEED – What you need to know”. Kiinko Real Estate Education. (Helsinki, Finland). October 2013
  • Nordic Green Building Conference. “LEED Version 4 Update”. (Helsinki, Finland). January 2013
  • Canadian Green Building Council 2011 National Symposium. “Tomorrow’s Green Communities: Tools for Change; Community Energy Plans”. (Toronto, ON). 2011
  • University of Toronto 2nd Year Civil Engineering Class. Sustainable Communities”. (Toronto, ON). September 2011 and September 2010
  • 5th International Conference in Industrial Ecology, International Society for Industrial Ecology. “Designing an Optimal Urban Community Mix for Aquifer Thermal Energy Storage”. (Lisbon, Portugal). June 2007


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