Once upon a time, debates about climate policy were primarily about the science. An inordinate amount of attention was focused on the handful of “climate skeptics” who challenged the scientific understanding of climate change. The influence of the skeptics, however, is rapidly fading; few people were swayed by their arguments, and doubt about the major results of climate science is no longer important in shaping public policy.
As the climate science debate is reaching closure, the climate economics debate is heating up.
Still lazy and overstuffed with meat. Until such time as I am feeling more energetic, Frank Ackerman provides a nice overview of the state of the economic debate re climate change and makes a case for acting immediately. Nice discussion of the importance of "discount rates". You'll laugh! You'll cry!