Guardian: It is very hard for the average person in the street to come to a sensible conclusion on peak oil. It’s a subject that prompts a passionate polarisation of views. The peak oilists sometimes sound like those extraordinary Christians with sandwich boards proclaiming that the end of the world is nigh. In contrast, the the international economic establishment – including the International Energy Agency (IEA) – has one very clear purpose in mind at all times: don’t panic. Their mission seems to …