Professor Williams moderates a panel discussion of the Kyoto Protocol and potential solutions to climate change. Other participants include Anita Halvorssen, J. Kevin Healy, William Pizer, and Jacob Werksman

We describe three essential elements of an effective post-2012 international global climate policy architecture: 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...

This short essay provides an account of what happened in the run-up to, and during, the Copenhagen climate change summit in 2009. It briefly discusses the scientific basis for climate change policy, which came under fire only a few weeks before the Conference of the Parties. It then turns to the...