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Facing the climate change challenge in a global economy / Lee G. Branstetter, William A. Pizer. NBER, July 2012 (Working Paper N° 18214)http://papers.nber.org/papers/w18214--&#62; Draft disponible ici : http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1988479Over the past two decades, the international community has struggled to deal constructively with the problem of mitigating climate change. This is considered by many to be the preeminent public policy challenge of our time, but actual policy responses have been relatively modest. This essay provides an abbreviated narrative history of international policy in this domain, with a special emphasis on aspects of the problem, proposed solutions, and unresolved issues that are of interest to international economists and informed observers of the global economic system. We also discuss the potential conflict that could emerge between free trade principles on the one hand and environmental policy objectives on the other. (© Branstetter &#38; Pizer)