Sheila M. Olmstead and Robert N. Stavins (Yale University – School of Forestry and Environmental Studies and Harvard University – John F. Kennedy School of Government) have posted An Expanded Three-Part Architecture for Post-2012 International Climate Policy on SSRN. Here is the abstract:
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We describe the major features of a post-2012 international global climate policy architecture with three essential elements: a means to ensure that key industrialized and developing nations are involved in differentiated but meaningful ways; an emphasis on an extended time path of targets; and inclusion of flexible market-based policy instruments to keep costs down and facilitate international equity. This architecture is consistent with fundamental aspects of the science, economics, and politics of global climate change; addresses specific shortcomings of the Kyoto Protocol; and builds upon the foundation of the United Nations Framework Convention on Climate Change.