Background and activities

I am professor of industrial sustainability at Yale University and director of the Yale Center for Industrial Ecology. I am a guest researcher at NTNU. I served as a Professor of Energy and Process Engineering and director of the Industrial Ecology Program at NTNU from 2003 to 2015. In the fall semester of 2019, I will join NTNU as International Chair.

I am a member of the International Resource Panel , where I lead an assessment report on resource efficiency and climate change at the request of the G7. I have contributed to the IPCC 5th assessment report as a lead author of the energy systems chapter and the methods annex, as well as a contributor to the Technical Summary and the Summary for Policy makers. Further, I have contributed to  the Global Energy Assessment. I am a member of the editorial board of Environmental Science & Technology, the Journal of Industrial Ecology, and the Journal of Economic Structures.

I was born in Salzburg, Austria. I have an engineering degree from the HTL Braunau, an Bachelor in physics (Magna Cum Laude) from Princeton University, and an MSc and PhD in energy & ressources from the University of California, Berkeley.


My research interests cover climate mitigation, life cycle assessment, sustainable consumption and production, trade and environment, and risk analysis. I am interested in understanding how activities in our society produce environmental pressures, the dynamics in our development that affect these driving forces and their resulting environmental pressures, and alternative courses of action that can reduce these pressures. What is the connection between human activities on the one hand and emissions and resource use on the other hand? What are the implications of our current development path? What do we need to change, both in terms of individual actions and policy frameworks, to achieve a more sustainable development?


Previous NTNU Projects

  • GLAMURS: Green Lifestyles, Alternative Models and Upscaling Regional Sustainability
  • DESIRE: Development of a System of Indicators for a Resource-Efficient Europe
  • ADVANCE: Model development and validation for climate policy analysis
  • Carbon CAP: Consumption-based accounting and policy
  • CENSES: Center for sustainable energy studies



Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications