Directory of Experts
Back to search results
Guillaume Majeau-Bettez
B.Sc. (McGill), M.Sc., Ph.D. (NTNU)

Research interests and affiliations

Research interests
  • Life cycle assessment
  • Material flow analysis
  • Environmentally extended input-output analysis
  • Industrial ecology
  • Circular economy
  • Sustainable development & mitigation of climate change
  • Recycling and waste management strategies
  • Prospective environmental analyses of technology transitions
  • Electrification of transports
  • Open-source software development
  • Operations research and environmental optimisation
Expertise type(s) (NSERC subjects)
  • 1503 Air and noise pollution
  • 7003 Renewable and non-renewable resources management




Guillaume Majeau-Bettez strives to better quantify the environmental consequences of our technology choices. His research pushes further the level of integration of complex-system analysis tools, in order to better inform environmental strategic decisions, especially those of the industrial and governmental partners of the International Life Cycle Chair (ILCC) and the Advanced Recycling and Material Recovery Chair (CRVMR).

Guillaume Majeau-Bettez is particularly interested in the environmental optimization of material recycling loops, in order to anticipate the challenges (accumulation of impurities, etc.) and the viable transition pathways toward a Circular Economy. His research also contributes significantly to the open life cycle assessment of Li-ion batteries and electric vehicles, as well as the optimization of their deployment as a climate change mitigation measure.


  • GCH1220 – Ecodesign and lifecycle analysis
  • GCH8401 - Applications, consequences and impacts of chemical engineering on society
  • GCH1511 - Thermodynamics


News about Guillaume Majeau-Bettez

NEWS | April 27, 2023
Announcing the creation of the International Research Consortium on Life Cycle Assessment and Sustainable Transition | Read
NEWS | April 11, 2023
Pathways to net-zero carbon: Government of Canada allocates $1 million for two Polytechnique Montréal projects | Read
NEWS | June 22, 2021
Humanities: Polytechnique Montréal researchers involved in research projects and partnerships | Read