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Climate Change

Like my hon. Friend, I have a sceptical frame of mind. It is important to consider this matter in such a frame of mind and not to be blind to certain evidence or science that is important in relation to climate change. He referred to initial conditions that he will not discuss at great length now. I want to mention one issue. On a number of occasions he said that we needed to be sure. Does he not recognise that, at least in the context of this debate, this is not a matter of being absolutely certain, but about the balance of probabilities? That perhaps makes his argument a little less forceful than might otherwise be the case.