Climate Change Act 2008 (2020 Target, Credit Limit and Definitions) Order 2009

My Lords, if the noble Lord would let me finish the sentence that I was in the middle of, I can say that this photograph of the US nuclear ship "Skate" was taken at the North Pole during the winter in March 1958. It was completely ice-free. If you put that together with the ice records I mentioned, there is a great deal of myth that passes about the North Pole and the South Pole. The North Pole is subject to currents, which probably explains the fact that it is sometimes completely ice-free. It is not a great static block of ice that is melting. Those are the facts about the Antarctic ice. Laboratory science theory states that doubling the concentration of carbon dioxide in the atmosphere would increase temperatures by 1 degree. A doubling of carbon dioxide takes place approximately every 200 years at the current rate of emissions, perhaps a bit more. Therefore, the whole argument hangs by a thread. Do other factors such as currents, sun and clouds accentuate that warming or do they decrease it? The IPCC’s theory is that they increase that warming. That is why the Government have, as my noble friend Lord Lawson, said, made the completely unsubstantiated assertion that temperatures will rise by 4 degrees this century. Probably the best climatologist in the world is Professor Lindzen and another good one is Professor Singer. Professor Lindzen calculates that the effect of all these other feedbacks, as they are known in the jargon, is to reduce temperatures not increase them. He calculates that a doubling of carbon dioxide in the atmosphere would increase temperatures by about 0.3 of a degree. You can argue about the science and I am not a good enough climate physicist to make any direct contribution on that. What you cannot argue about are the facts. The facts are that there has been no acceleration whatever in global warming since emissions took off after World War 2 and that temperatures today, after the past nine years of static or cooling temperatures, are bang on that consistent recovery of 0.6 degrees from the little ice age and are well below even the lowest estimates of the IPCC range. So observation suggests that Professor Lindzen may be right and the IPCC completely wrong.