Here is a great podcast recorded at the Sydney Institute – well worth a listen. Ian Dunlop, formerly a senior oil, gas and coal industry executive and now chair of Safe Climate Australia debates climate change with Ray Evans, former engineering academic and now Secretary of the Lavoiser Group.
[http://mpegmedia.abc.net.au/rn/podcast/2009/07/bia_20090726.mp3]
Ian Dunlop acquitted himself very well, though he could have been stronger and more specific on the scientific detail: my impression was that he presented the level of scientific confidence on some basic questions to be much more equivocal than it is. He let Evans get away with a string of utterly false claims.
What a hopelessly weak performance from Ray Evans! No scientific case of any substance at all. A large soup of irrelevancies, mixed with a cup of straw men, and spiced up with a handful of downright false statements. Just goes to show how bereft of scientific argument the Greenhouse Mafia (of which Evans is a key member) really is.