Science & Technology

"It might be relatively easy, but actually quite unfortunate, for countries to achieve what some people might define as 'success' in Cancun:  a signed international agreement, followed by glowing press releases.  I say it would unfortunate, because such an agreement could only be the Kyoto Protocol on steroids: more stringent targets for the original list of industrialized countries (Annex I) and no meaningful commitments by the key rapidly-growing emerging economies, such as China, India, Brazil, Korea, Mexico, and South Africa."

Negotiations under the United Nations Framework Convention on Climate Change (UNFCCC) at Copenhagen in December 2009 did not produce a new international treaty with binding emissions commitments, but have defined a roadmap for dealing with global climate change in the post-2012 era. As countries continue to pursue new models for global agreement, it will be important to learn from the weaknesses of past approaches, while building on positive aspects of the experience with the Kyoto Protocol so far.

Our proposal for a post-2012 international global climate policy agreement contains three essential elements: meaningful involvement by key industrialized and developing nations; an emphasis on an extended time path of targets; and inclusion of market-based policy instruments. This architecture is consistent with fundamental aspects of the science, economics, and politics of global climate change.