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 Rio+20 and the Global Environment: Reflections on Theory and Practice / ed. by Robert Falkner and Bernice Lee,  International Affairs, special issue, vol. 88, no. 3, May 2012http://onlinelibrary.wiley.com/doi/10.1111/inta.2012.88.issue-3/issuetocContents :Introduction / Robert Falkner and Bernice LeeEmerging powers, North–South relations and global climate politics / Andrew Hurrell and Sandeep SenguptaInternational political economy and the environment: back to the basics? / Jennifer Clapp and Eric HelleinerGlobal environmentalism and the greening of international society / Robert FalknerInstitutional diffusion in international environmental affairs / Alexander Ovodenko and Robert O KeohaneEngaging the public and the private in global sustainability governance / Kenneth W AbbottInstitutional design and UNEP reform: historical insights on form, function and financing / Maria IvanovaComplex global governance and domestic policies: four pathways of influence / Steven Bernstein and Benjamin CashoreThe changing fortunes of differential treatment in the evolution of international environmental law / Lavanya Rajamani