|
Brookings Institution (United States)
125
|
Center for Strategic and International Studies (United States)
73
|
Urban Institute (United States)
32
|
|
Energy Policy Research Group (United Kingdom)
30
|
RAND Corporation (United States)
19
|
International Institute for Environment and Development (United Kingdom)
15
|
|
American Enterprise Institute (United States)
12
|
Science Policy Research Unit (United Kingdom)
10
|
German Development Institute (Germany)
9
|
|
Environment for Development Initiative (Sweden)
5
|
Carnegie Endowment for International Peace (United States)
4
|
Centre for Energy Policy and Economics (Switzerland)
2
|
|
Chatham House (United Kingdom)
2
|
Institute of Water Policy (Singapore)
2
|
Overseas Development Institute (United Kingdom)
2
|
|
Center for American Progress (United States)
1
|
Center for Climate and Energy Solutions (United States)
1
|
Centre for International Governance Innovation (Canada)
1
|
|
Danish Institute for International Studies (Denmark)
1
|
French Institute of International Relations (France)
1
|
