1. School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, P. R. China
2. Center for Global Environmental Policy, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, P. R. China
3. School of Economics and Management, Beijing Institute of Petrochemical Technology, Beijing 102617, P. R. China
4. Chinese Academy of Macroeconomic Research, No. A-11, Muxidi North Street, Beijing 100038, P. R. China
5. College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
6. School of Public Affairs, Chongqing University, No. 174 Shazheng Street, Chongqing 400044, P. R. China
7. Institute for Global Environmental Strategies, 2108-11 Kamiyamaguchi Hayama, Kanagawa 240-0115, Japan
8. National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
9. Center on Global Energy Policy at Columbia University SIPA, 1255 Amsterdam Avenue, New York, New York 10027, United States
10. Agora Energiewende, Anna-Louisa-Karsch-Str. 2, Berlin 10178, Germany