In this seminar, Scott Barrett discussed, by using analogies from poker, the dilemmas of collaboration versus protecting individual interests. While all countries have accepted the collective need to avoid danger by limiting "global warming" to 2 degrees Celsius, the pledges states have made post-Copenhagen virtually guarantee that this target will be missed.

"This is a puzzle," Barrett says, "but it can be explained once we disentangle the incentives for states to act collectively and individually. States can know which collective target is best, and yet face incentives to propose that they collectively aim to meet a weaker target. Worse, they can have incentives to pledge to do less individually than is required to meet this weak collective target, and, finally, to do less than is required to fulfill even these weak promises."

About Scott Barrett
Scott Barrett is the Lenfest-Earth Institute Professor of Natural Resource Economics at Columbia University in New York City. He is also a fellow and the current chairman of the board of the Beijer Institute. During the 2012-2013 academic year he is a visiting research fellow at Princeton University.

His research focuses on ways in which international cooperation can be promoted to address issues like climate change, disease eradication, and overfishing. He is the author of Environment and Statecraft and Why Cooperate?, both published by Oxford University Press. He has also been an advisor to numerous international organizations, and was previously a lead author of the Intergovernmental Panel on Climate Change.
 
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