|
Centre for Economic Policy Research (United Kingdom)
11
|
Wuppertal Institute for Climate, Environment and Energy (Germany)
10
|
Center for Environmental Research (Germany)
4
|
|
Ecologic Institute (Germany)
3
|
Stockholm Environment Institute (Sweden)
3
|
International Institute for Environment and Development (United Kingdom)
2
|
|
American Enterprise Institute (United States)
1
|
Energy Policy Research Group (United Kingdom)
1
|
Fondazione Eni Enrico Mattei (Italy)
1
|
|
World Resources Institute (United States)
1
|
