Berkeley University, USA

Boston University, USA

Cairo University, Egitto

California State University, Fresno, USA

Cato Institute for public policy analysis Fondazione di ricerche sulle politiche pubbliche di Washington D.C.

Center for Strategic and International Studies - CSIS Centro studi strategici ed internazionali di Washington D.C.

Duke University, Durham, USA

ETH - Zurich, Confederazione Elvetica

Georgetown University, Washington, USA

Indian Institute of Management, Bangalore

Indian Institute of Technology, Bombay

International Institute for Sustainable Development - IISD Sito dell'Istituto Internazionale per lo Sviluppo Sostenibile

Massachusetts Institute of Technology Sito del MIT di Cambridge, MA, USA

New York University

Princeton University, New Jersey, USA

Resource centre for sustainable development Sito del Centro di Informazione sullo Sviluppo Sostenibile

Smithsonian Institution, USA

The University of Hong Kong, China

Universidad de La Habana, Cuba

University of Botswana

University of California at Los Angeles - UCLA

University of Tehran, Iran

University of Toronto, Canada

University of Zimbabwe