1. Institute of Environmental Sciences (CML), Department of Industrial EcologyLeiden University The Netherlands
2. Paul Scherrer Institute (PSI) Aargau Switzerland
3. Netherlands Environmental Assessment Agency (PBL) Den Haag The Netherlands
4. Copernicus Institute of Sustainable DevelopmentUtrecht University Utrecht The Netherlands
5. UCL Institute for Sustainable Resources, The Bartlett School of Environment, Energy and ResourcesUniversity College London London UK
6. Department of Management and EconomicsPolitecnico di Milan Milan Italy
7. The Netherlands Organization for Applied Scientific Research TNO Delft/Leiden The Netherlands