|
Urban Institute (United States)
95
|
RAND Corporation (United States)
11
|
Stockholm Environment Institute (Sweden)
8
|
|
Center for American Progress (United States)
6
|
E3G – Third Generation Environmentalism (United Kingdom)
6
|
Competitive Enterprise Institute (United States)
4
|
|
Carnegie Endowment for International Peace (United States)
3
|
Chatham House (United Kingdom)
3
|
International Institute for Sustainable Development (Canada)
2
|
|
Resources for the Future (United States)
2
|
Centre for International Governance Innovation (Canada)
1
|
International Institute for Environment and Development (United Kingdom)
1
|
|
Overseas Development Institute (United Kingdom)
1
|
