When countries believe that high emissions levels are necessary to economic growth, they naturally become reluctant to agree to any binding protocol that would curtail emissions and thus stifle growth.
En 1988, Robert Putnam de l'université de Harvard a écrit un article révolutionnaire, Diplomacy and Domestic Politics: The Logic of Two-Level Games [Diplomatie et politique intérieure&#160;: la logique d'un jeu à deux niveaux].