David Henderson at EconLog has this wonderful post about a debate/discussion on global warming and climate change. It is worth reading his summary even if you don't listen to the actual discussion or read the transcript.
In his introduction, David writes:
In the area of global warming, it's hard to find a civil discussion between two experts who disagree. This is one. Partly, I think, it's because Russ [Roberts] does a good job of being even-handed and drawing out the facts and conjectures. But probably more important is that both Christy and Emmanuel are reasonable people.
I love that both speakers acknowledge what they do and do not know. They argue less from established positions and more from different interpretations and explanations of the data on which they agree.
I urge EVERYONE to read this post at the very least and preferably to follow the links to the original transcript.