Best piece I have seen on the Lord Monkton letter (a perfect smack-down) and the whole politicization of geology and climatology in the interest of state and/or bureaucratic control over the world economy - at Classical Values.
Read his piece - it is funny. One thing I wonder about is not how much politicans hurt themselves when they get on quasi-religious bandwagons like this - we expect them to be foolish - but about how much scientists discredit themselves and the profession in this way.
I cannot remember a time in my life when loud scientists were right about any public policy or about any long-term prediction. Correct me if I am wrong (I know you will.). Just off the top of my head: the population "bomb," "Star Wars", the ABM Treaty, the Global Cooling Crisis, how to make peace with the USSR (surrender), Vietnam (surrender), the earth running out of oil (1970s), not to mention endless medical and health scares. People will gradually just tune out the hysteria.