PPS I have had a chance to listen to the video, and in particular to the question and answer session of the final 30 minutes or so. Here are my comments on that, as posted on Bishop Hill (on the post linked to in the PS hat-tip):
'The global warming hypothesis was a godsend to the New Left. It provided a means of attacking industry and capitalism through the one great essential to modern life, energy. Anyone who questioned the dogma was subject to insults and threats, including the appalling crudity and tastelessness of being likened to the holocaust deniers.'
John Brignell, 2008