"If he lives up to his campaign rhetoric, Mr. Trump may indeed be able to reverse course on climate change policy, increasing the threat to our planet, and in the process destroy much of the Obama legacy in this important realm. This will make the states even more important players on this critical issue."

"...Lima is important because it calls for long-term action and has broad geographic participation. That is a sound foundation for ultimate success."

The authors draw upon the past decade of experience with carbon markets to test a series of hypotheses about why governments have demonstrated a preference for linking.

The outcome of the December 2011 United Nations climate negotiations in Durban, South Africa, provides an important new opportunity to move toward an international climate policy architecture that is capable of delivering broad international participation and significant global CO2 emissions reductions at reasonable cost. This paper addresses an important component of potential climate policy architecture for the post-Durban era: links among independent tradable permit systems for greenhouse gases.

The climate change talks in Cancun, Mexico, didn't solve all the world's climate problems. But they were hugely successful. Through the Cancun Agreements, 194 countries reached landmark consensus (even the US and China) to set emissions targets and limit global temperature increases.

The international climate negotiations in Cancun, Mexico, have concluded, and despite the gloom-and-doom predictions that dominated the weeks and months leading up to Cancun, the Sixteenth Conference of the Parties (COP-16) of the United Nations Framework Convention on Climate Change (UNFCCC) must be judged a success.  It represents a set of modest steps forward.  Nothing more should be expected from this process.