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Daniel Hoornweg, PhD - University of Ontario Institute of Technology. Oshawa, ON, CA

Daniel Hoornweg, PhD Daniel Hoornweg, PhD

Associate Professor and Richard Marceau Chair, Faculty of Energy Systems and Nuclear Science | University of Ontario Institute of Technology, and Chief Safety and Risk Officer, Province of Ontario

Oshawa, ON, CANADA

International expert in developing sustainable cities through the flow of natural resources


For two decades, Daniel Hoornweg, PhD, travelled the world leading the development of sustainable communities. His global expertise in this area provided a pivotal impact on improving the operation and growth of hundreds of cities by optimizing their flow of materials and energy.

In 2012, Dr. Hoornweg was appointed Associate Professor and Richard Marceau Chair (formerly Jeffrey S. Boyce Research Chair in Natural Gas as a Transportation Fuel) in the Faculty of Energy Systems and Nuclear Science, a natural next step since energy is central to infrastructure and city development, the core of his distinguished career. He currently holds appointments as the Province of Ontario’s Chief Safety and Risk Officer, and Senior Fellow of the Global Cities Institute at the University of Toronto in Ontario. He also authored the book Cities and Sustainability: A new approach.

While serving as an Adjunct Professor with the University of Ontario Institute of Technology for six years, he helped steer the development of more than 300 cities across North America, South America, Africa and Asia as the World Bank’s lead Urban Advisor on Sustainable Cities and Climate Change. From Washington, D.C., he managed more than 50 infrastructure investment projects with $3.5 billion investment. He continues as a fellow with the World Bank’s Sustainable Development Network.

On secondment from the World Bank, he served as Director of International Development at CH2M Hill Consulting in Toronto, where he assisted the firm’s international business program in India and Nepal. Prior to joining the World Bank, he was Solid Waste Manager with the Government of Bermuda’s Ministry of Works and Engineering.

Prior to his impact abroad, Dr. Hoornweg began his career working for local governments on recycling, composting and waste management issues. Fascinated by the ability to affect change at an individual level, as well as city-wide, his motivation for improving communities through waste reduction was spurred by their successes. He held the position of Waste Management Co-ordinator with the City of Guelph, Ontario where he helped launch Canada’s first municipal Green Plan, and introduced the first local government Roundtable on the Economy and Environment. He also served as Recycling Co-ordinator with the Municipality of Peel Ontario; Well-site Engineer for Schlumberger of Canada in Calgary, Alberta; and Well-site Safety Inspector on Lake Erie with the Ontario Ministry of Natural Resources.

Industry Expertise (6)


Sanitation and Waste Management

Renewables and Environmental

Public Policy

Environmental Services


Areas of Expertise (4)

Energy Systems and Public Policy

Material Flows in Cities (Energy and Solid Waste)

Sustainable Communities

Natural Gas as A Transportation Fuel

Accomplishments (8)

Associate Professor, Faculty of Energy Systems and Nuclear Science, and Richard Marceau Research Chair, UOIT (professional)


Dr. Hoornweg currently teaches Emerging Energy Systems and Fossil Fuel Energy Conversion at UOIT. He has been appointed UOIT’s representative among several stakeholder groups including the Natural Gas Vehicles Association, the Canadian Energy Council, Durham Region Roundtable on Climate Change, and the Clarington Green Infrastructure Review Committee.

Fellow, Sustainable Development Network, World Bank (professional)


A fellow with the World Bank’s Sustainable Development Network, Dr. Hoornweg serves as an Advisor on sustainable communities, infrastructure services, finance, public policy and energy systems.

Chief Safety and Risk Officer, Province of Ontario (professional)


Reporting directly to the Board of Technical Standards and Safety Authority (TSSA), Dr. Hoornweg is responsible for overseeing TSSA’s provision of public safety. Since 2012, he has served as a public advocate for risk management.

Senior Fellow, Global Cities Institute, University of Toronto (professional)


Dr. Hoornweg is a senior fellow with the Global Cities Institute at U of T, which serves to build on the strengths of a rapidly expanding global network of scholars, city leaders, design and planning professionals, key international organizations, foundations and industry innovators dedicated to securing a better future for cities.

Corporate Advisor to Philips, GDF Suez, and McKinsey & Company (professional)


Dr. Hoornweg serves as a corporate advisor and member of GDF Suez Urban Strategy Council, and Philips Livable Cities Think-Tank.

Lead Author, Cities and Climate Change: An Urgent Agenda (professional)


As lead author, Dr. Hoornweg published the World Bank’s Cities and Climate Change: An Urgent Agenda, a two-volume report summarizing the 2010 Marseille Research Symposium that brought together more than 700 researchers, 300 research papers, and more than 50 private sector participants worldwide. The conference and published report had a significant influence in moving the World Bank and its member countries toward a more aggressive response to climate change, mitigation and adaptation.

Board Member, Waste Diversion Ontario (WDO) (professional)


Dr. Hoornweg is a board member of the WDO, which provides oversight for the development, implementation, and operation of diversion programs for waste designated by the Minister of the Environment.

Advisory Council Member, Evergreen CityWorks (professional)


He is an advisory council member of Evergreen CityWorks, a national non-for-profit organization dedicated to building sustainable cities with a focus on four key areas: housing, transportation, city building and innovation. The advisory council provides strategic guidance on optimizing existing infrastructure and new sustainable city building initiatives.

Education (3)

University of Toronto: PhD, Philosophy, Environmental (Civil) Engineering 2015

University of Guelph: MSc, Environmental (Municipal) Engineering, School of Engineering 1992

University of Waterloo: BSc, Civil Engineering (Geotechnical) 1985


Affiliations (12)

  • Professional Engineers Ontario
  • Evergreen CityWorks
  • Columbia University
  • Massachusetts Institute of Technology
  • John Hopkins School of Advanced International Studies
  • University of Toronto
  • Cambridge University
  • World Research Institute
  • World Energy Council
  • International Energy Association
  • World Business Council for Sustainable Development
  • American Society of Civil Engineers

Media Appearances (2)

UOIT professor Dr. Daniel Hoornweg charts a path for a cleaner, greener Ontario

Metroland Media, Durhamregion.com  online


Dr. Hoornweg’s study, ‘Exploring Alternative Transportation Options in the Greater Toronto Area: Electric and Natural Gas Vehicles’ concludes that a long-term approach focusing on clean and affordable solutions is feasible with the use of electric-powered personal vehicles and natural gas-powered buses and heavy-duty trucks.

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What makes a resilient city?

Corporate Knights, the Magazine for Clean Capitalism  print


Some cities have an advantage over others when it comes to today’s natural disasters and planning for climate resilience.

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Research Grants (1)

Richard Marceau Research Chair

Sure Energy Inc. $1500000


Dr. Hoornweg's research involves exploring ways to optimize the use of natural gas as a transportation fuel in reducing greenhouse gas emissions and noise pollution, lowering fuel costs, and providing higher reliability. His research aims to improve public policy, and enhance the design of equipment and systems for providing compressed natural gas (CNG) and/or liquefied natural gas (LNG) to the transportation sector.

Articles (5)

An Urban Approach to Planetary Boundaries Ambio, A Journal of the Human Environment


The achievement of global sustainable development goals subject to planetary boundaries will mostly be determined by cities as they drive cultures, economies, material use, and waste generation. Locally relevant, applied and quantitative methodologies are critical to capture the complexity of urban infrastructure systems, global inter-connections, and to monitor local and global progress toward sustainability. An urban monitoring (and communications) tool is presented here illustrating that a city-based approach to sustainable development is possible.

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Meeting the Infrastructure Challenges of African Cities ICSI 2014, Americna Society of Civil Engineers


When assessing Africa's urbanization trends and the acute need for finance, stability of macroeconomic and social conditions, institutional strengthening, efficient urban form, and capacity - this paper asserts that a critical need is capacity, especially domestic engineering capacity. The scale of Africa's capacity needs will necessitate new models of collaboration and urban management.

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Low-Carbon Infrastructure Strategies for Cities Nature Climate Change


Reducing greenhouse gas emissions to avert potentially disastrous global climate change requires substantial redevelopment of infrastructure systems. Cities are recognized as key actors for leading such climate change mitigation efforts. We have studied the greenhouse gas inventories and underlying characteristics of 22 global cities. These cities differ in terms of their climates, income, levels of industrial activity, urban form and existing carbon intensity of electricity supply.

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Peak Waste: When is it Likely to Occur? Journal of Industrial Ecology


Population and per capita gross domestic product (GDP) projections are used to estimate total global municipal solid waste (MSW) generation over the twenty-first century. Some projections for global population suggest that it will peak this century. Waste generation rates per capita generally increase with affluence, although in the most affluent countries there is also a trend toward dematerialization. The confluence of these factors means that at some point in the future total global waste generation could possibly peak. To determine when peak waste might occur, we used the shared-socioeconomic pathway scenarios (used in Intergovernmental Panel on Climate Change [IPCC] studies) combined with estimates of municipal solid waste (MSW) generation rates, extrapolated from our work for the World Bank.

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Environment: Waste Production Must Peak this Century Nature, International Weekly Journal of Science


Solid waste — the stuff we send down our chutes, discard at work and put on the curb every week — is a striking by-product of civilization. The average person in the United States throws away their body weight in rubbish every month. When waste management works well, we give it little thought: out of sight and, usually, quickly out of mind. Discarded materials are collected, some are recycled or composted, and most are landfilled or incinerated. But the global view is troubling.

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