1. School of Economics and Management, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
2. Department of Geographical Sciences, University of Maryland, Lefrak Hall, College Park, Maryland 20742, United States
3. Integrated Research on Energy, Environment and Society (IREES), Energy and Sustainability Research Institute Groningen (ESRIG), University of Groningen, Groningen 9747 AG, The Netherlands
4. Department of Environmental Studies, Masaryk University, Jostova 10, 602 00 Brno, Czech Republic