Honestly I had never heard of James Delingpole before, but apparently he is a big climate skeptic in the UK, he also appears to be poorly informed, and transparently flummoxed by simple questions. News papers like to make it seem like things have two sides, and in a lot of situations this is true. Science doesn’t work like that, your theory that gravity is caused by elves is not as valid as Newton’s theory of gravity, no matter how much you stomp your feet that is still true. Newton’s theory is more valid because it has been tested, peer reviewed, and has stood up to repeated attacks by other scientists trying to disprove it. More here.