Nathalie Chalifour


Nathalie Chalifour
Associate Professor

Bureau: 613-562-5800 ext. 3331
Bureau: 613-562-5124
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Nathalie Chalifour


Nathalie Chalifour is co-director of the Centre for Environmental Law and Global Sustainability. She is also cross-appointed to the Institute of the Environment, where she directs the interdisciplinary graduate Environmental Sustainability Program.

Her research is interdisciplinary, focusing on the intersections between the environment, the economy, and environmental and social justice.  She holds a Doctorate in law from Stanford University (2005) and a Master in Juridical Sciences (1999) which she obtained as a Stanford Program in International Legal Studies Fellow and Fulbright scholar. 

Nathalie has published numerous articles which address a variety of topics, including carbon taxes, social justice, ecological fiscal reform, sustainable forestry, brownfields redevelopment, and the effects of trade liberalization on nature conservation. You may read some of her publications online here. She is the Co-Editor of Critical Issues in Environmental Taxation, Volume V(Oxford University Press, 2008), Land Use Law for Sustainable Development(Cambridge University Press, 2007) and the looseleaf edition of The Canadian Brownfields Manual (LexisNexis, 2004), which is updated annually. 

She joined the Faculty of the Law in 2003, where she teaches Environmental Law, Property Law, and a seminar on Sustainability and the Law.  She is on the advisory board of the University of Ottawa Ecojustice Clinic and helped to establish the Secretariat of the IUCN Academy of Environmental Law and the Sustainable Prosperity Network’s Research Committee and Policy Network, a knowledge cluster funded by the SSHRC.

Before joining the Faculty, Professor Chalifour was Senior Advisor to the President and CEO of the National Round Table on the Environment and the Economy.  She also served as a senior policy advisor for the World Wildlife Fund (WWF) where she worked on tiger conservation, sustainable forestry, financing conservation and was responsible for developing policies on the World Trade Organization and the Free Trade Area of the Americas.  She established a Canadian office of TRAFFIC, a joint program of WWF and The World Conservation Union (IUCN) responsible for implementing CITES (the Convention on the International Trade of Endangered Species of Wild Flora and Fauna). Professor Chalifour taught International Environmental Law and Comparative Natural Resources Law at the University of Nairobi in Kenya. She was also Director of the International Law Institute at the University of Nairobi, Kenya, a program run by Widener University .


Books edited

  • Nathalie J. Chalifour, Hope Ashiabor, Kurt Deketelaere, Larry Kreiser, Janet Milne, eds., Critical Issues in Environmental Taxation – Volume V (Oxford University Press, 2008).
  • Nathalie J. Chalifour, Patricia Kameri-Mbote, Lin Heng Lye, John Nolon, eds., Global Land Use Law for Sustainable Development (Cambridge University Press, 2006).
  • Ahab Abdel-Aziz & Nathalie J. Chalifour, The Canadian Brownfields Manual (Lexis Nexis – Butterworths, October 2004, updated annually) (looseleaf service).

Book chapters

  • Nathalie J. Chalifour, María Ruiz & Eduoardo Traversa, Multi-level Governance: The Implications of Legal Competences to Collect and Administer Environmental Tax Instruments, in Janet Milne & Mikael Skou Andersen, Editors, Handbook of Research on Environmental Taxation (Edward Elgar Publishing, 2012).
  • Nathalie J. Chalifour and Gavin Smith, The Pursuit of Environmental Justice in the McLachlin Court, in Sanda Rogers and Sheila McIntyre eds., The Supreme Court of Canada and Social Justice: Commitment, Retrenchment or Retreat (2010).
  • Nathalie J. Chalifour, The Constitutional Authority to Levy Carbon Taxes, in Thomas J. Courchene and John Allan, eds., The State of the Federation (Institute of Intergovernmental Relations, McGill-Queen’s University Press, 2009).
  • Nathalie J. Chalifour and Amy Taylor, “Encouraging the Use of Renewable Energy in the Canadian Residential Sector Using Economic Instruments”, in Jacqueline Cottrell et al., eds. Critical Issues in Environmental Taxation. International and Comparative Perspectives, Volume VI (Oxford University Press, 2009).
  • Nathalie J. Chalifour, “Ecological Economics, Sustainable Land Use and Policy Choices”, in Nathalie J. Chalifour et al., eds., Global Land Use Law for Sustainable Development (Cambridge University Press, 2006).
  • Nathalie J. Chalifour and Hope Ashiabor, “The Deductibility of Environmental Fines, Penalties and Payments from Income – A Comparison of the Australian and Canadian Approaches”, in Hope Ashiabor et al., eds., Critical Issues in Environmental Taxation: Volume III – International and Comparative Perspectives (Richmond Law & Tax, 2005).
  • Nathalie J. Chalifour, “Advancing Nature Conservation in Canada through Ecological Fiscal Reform - The Current Situation and Future Potential” in Kurt Deketelaere et al.,  eds., Critical Issues in Environmental Taxation: Volume II – International and Comparative Perspectives (Richmond Law & Tax, December 2004).

Selected articles

  • Karen Bubna-Litic & Nathalie J. Chalifour, Achieving Social Justice and Addressing Climate Change – A Comparison of Carbon Taxes and Emissions Trading Systems in Canada and Australia. (2012) 35:1 Dal. L. J.
  • Nathalie J. Chalifour, “Promoting Environmental Justice Through Environmental Assessment – the Case of Fort Chipewyan and the Kearl Oil Sands Joint Review Panel”, (2010) 21 J.E.L.P. 31.
  • Nathalie J. Chalifour, “A Feminist Perspective on Carbon Taxes” (2010) 21:2 C.J.W.L. 171.
  • Nathalie J. Chalifour “Case Comment - A (Pre)Cautionary Tale about the Kearl Decision – How the Federal Court Takes Diverts from the Precautionary Principle” (2009) 5:2 McGill J.S.D.L.P. 251.
  • Nathalie J. Chalifour, “Canada’s Division of Powers over Carbon Taxes” (2008) 22 2 N.J.C.L. 119.
  • Nathalie J. Chalifour, “Encouraging the Transition to Sustainable Forestry in Canada with Ecological Fiscal Reform – Potential and Pitfalls”, (2004) 14 J.E.L.P. 253.
  • Nathalie J. Chalifour, “Environmental Taxes and the WTO – An Analysis of the WTO Implications of Using Fiscal Incentives to Promote Sustainable Forestry in Canada”, 2003 C.Y.I.L. 153.
  • Nathalie J. Chalifour, Global Trade Rules and the World’s Forests:  Taking Stock of the World Trade Organization’s Implications for Forests, 12:3 Geo. Int'l Envtl. L. Rev. 575 (2000).

Selected reports

  • Nathalie J. Chalifour, The Constitutional Authority to Levy Carbon Taxes, in Thomas J. Courchene and John Allan, eds., The State of the Federation, 2009 (Institute of Intergovernmental Relations, McGill-Queen’s University Press).
  • Nathalie J. Chalifour and Karen Bubna Litic, Fairness in Carbon Pricing, Sustainable Prosperity Policy Brief (2011).
  • Vic Adamowicz, Nathalie Chalifour, Stewart Elgie, Michael Howlett, Marian Weber, Jay Anderson, Carla Gomez and Geoff McCarney, Natural Capital:  Using Ecosystem Service Valuation and Market-Based Instruments as Tools for Sustainable Forest Management, Sustainable Forest Management Network State of Knowledge Project, September 2009.
  • Nathalie J. Chalifour et Yves Prévost, L’évaluation du risque, le principe de précaution ou de prudence et la gestion adaptive – Une étude de cas de l’Agence canadienne de l’inspection des aliments et son approche pour gérer les risques d’introduction d’espèces envahissantes par voie des matériaux d’emballage en bois non traité, 2005.
  • Ernie Cooper and Nathalie J. Chalifour, CITES, eh?  A Review of Canada’s Implementation of CITES under WAPPRIITA, (Toronto:  WWF Canada, 2004).
  • Nathalie J. Chalifour, Ecological Fiscal Reform in Canada’s Forest Sector – A Discussion Paper, WWF Canada (2001).
  • Chalifour, N.J., Canada’s Role in the Tiger Trade:  Recommendations for a Tiger Safe Nation (World Wildlife Fund Canada, 1996).



  • CML 3769 - Droit de l'environnement
  • CML 1608 - Droit des biens
  • DCL 5340 - Sustainability and the Law


  • Carbon Taxes to Address Climate Change – Are they Effective? Are they Fair? University of Calgary, Voices in Law Speaker Series (October 16, 2012)
  • Discrimination by Environmental Harm - The Potential for the Equality Rights Guarantee in s. 15 of the Charter to Remedy Environmental Injustices, Environmental Justice Conference, University of Ottawa, November 9, 2012.
  • Mitigating Climate Change through Food Policy – The Role for Environmental Taxation, Global Conference on Environmental Taxation, University of British Columbia, September 21, 2012.
  • Environmental Justice and the Green Economy – Risks and Opportunities, Global Environmental Law at a Crossroads – the 10th Annual Colloquium of the IUCN Academy of Environmental Law, Baltimore, MD, July 3, 2012.
  • Social Justice and the Green Economy, Legal Preparedness for the Global Green Economy - Building an Innovative, Independent & Interdisciplinary International Research Agenda, University of Ottawa, May 13, 2012.
  • La justice environnementale et l’article 15 de la Charte, Colloque du ACFAS Droits humains et justice environnementale : enjeux et perspectives, Université de Québec à Montréal, le jeudi 12 mai 2012.
  • Climate Justice for Women in Canada, Women, the Charter, and CEDAW in the 21st Century: Taking Stock and Moving Forward, Queen’s University Feminist Legal Studies, March 4, 2012.
  • Natural Capital, Ecosystem Services and Valuation – Legal Aspects, FOREX webinar (March 29, 2011)
  • Gender-Based Environmental Policy Analysis – a Matter of Equality, Women and Equality - Gender-based Analysis, Law, and Economic Rights, Queen’s University Feminist Legal Studies, October 23, 2010
  • Fairness in Domestic Carbon Pricing Policies, Canadian Law and Society Association 2010 Conference, June 3, 2010.
  • Giving with One Hand and Taking with the Other?  A Feminist Perspective on Carbon Taxes, Shirley Greenberg Lecture Series (October 28, 2009).
  • Making Environmental Assessment Work for Environmental and Social Justice, The Demise of Environmental Assessment in Canada?  The 3rd JELP Environmental Law Conference, University of Windsor (October 23, 2009).
  • Functional Law – Seeking Justice for the Residents of Fort Chipewyan, Extractive Industries and Natural Resources Panel, Canadian Law and Society Association 2009 Conference, May 24, 2009.
  • Women, Equality, and Fiscal Policy:  Gender Analysis of Taxes, Spending, and Budgets, Queen’s University, Feminist Legal Studies, March 7, 2009.
  • The Constitutionality of Carbon Taxes, Carbon Pricing and Environmental Federalism, Queen’s University, October 18, 2008.
  • Economic Incentives for Renewable Energy in the Residential Sector in Canada, 8th Annual Global Conference on Environmental Taxation, Munich, Germany, October 19, 2007.
  • The International Policy Context of the “Perverse” versus the “Smart” Subsidy, 6th  Annual Global Conference on Environmental Taxation, Leuven, Belgium, September 23, 2005.
  • Transparency, Legitimacy and NGOs, Canadian Council of International Law Conference, October 16, 2004.
  • Economic Incentives to Promote Land Stewardship – Are Legal and Policy Constraints Paralysing Progress?, Land Use for Sustainable Development, Second Annual Colloquium of the IUCN Academy of Environmental Law, October 5, 2004.
  • The Practice and Politics of Allowing Deductions of Environmental Fines, Penalties and Payments from Income – A Comparison of the Canadian and Australian Approaches (Nathalie J. Chalifour & Hope Ashiabor), 5th Annual Global Conference on Environmental Taxation, Pavia, Italy, September 10, 2004.
  • Making the Business Case for Natural Capital, 8th Biennial Conference of the International Society for Ecological Economists, Montréal, Québec, July 12, 2004.
  • Ecological Fiscal Reform as a Tool for Sustainable Forest Managment – Potential and Pitfalls, 1st Annual Conference of the JELP, Saskatchewan College of Law, June 5, 2004.
  • Panel Presentation on Roundtable on Feminist Law Teaching:  Feminist Law Faculty Workshop “A Collective Conversation”, Osgoode Hall Law School, April 30, 2004.
  • Advancing Nature Conservation in Canada through Ecological Fiscal Reform - The Current Situation and Future Potential, Fourth Annual Global Conference on Environmental Taxation, Sydney, Australia, June 7, 2003.
  • Stewardship of Canada’s Natural Capital:  A National Perspective, presented at “Who’s Rewarding Stewardship”, Alberta Environmentally Sustainable Agriculture Program, Red Deer, Alberta, March 11, 2003.
  • The Implications of Multilateral Trade Agreements for Ecological Taxation Reform,
    Third Annual Global Conference on Environmental Taxation, Vermont Law School, April 12, 2002.
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