1. Environmental Systems Analysis, Chalmers University of Technology, Gothenburg, Sweden;
2. Sustainable Agricultural Landscapes Laboratory, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada;
3. Institute for Resources, Environment and Sustainability (IRES), The University of British Columbia, Vancouver, BC, Canada;
4. Sub-department of Environmental Technology, Wageningen University & Research, Wageningen, The Netherlands;
5. Swiss Federal Institute for Aquatic Science and Technology (Eawag), Dübendorf, Switzerland