Are you green? How many flights have you taken in the last year? Feeling guilty about all those unnecessary car journeys? Well, maybe there's no need to feel bad.

According to a group of scientists brought together by documentary-maker Martin Durkin, if the planet is heating up, it isn't your fault and there's nothing you can do about it.

We've almost begun to take it for granted that climate change is a man-made phenomenon. But just as the environmental lobby think they've got our attention, a group of naysayers have emerged to slay the whole premise of global warming.