Ridley vs. Mackay

Dr. Matt Ridley, author of the The Rational Optimist, debates some of the finer points of climate change in response to a long letter by Prof. David Mackay, author of Sustainable Energy: Without the Hot Air and Chief Scientific Adviser at the UK's Department of Energy and Climate Change (DECC), which, in turn, was written in reponse to an earlier article by Ridley.