Kyoto 'Fail': Global warming a cold case?

After years of complicated negotiations and compromises many question if the Kyoto protocol on greenhouse gas emissions did anything at all to help tackle gas emissions. The Kyoto protocol has simply been replaced by the Copenhagen "agreement". "The world need to addreses the fact that this event is not scientifically motivated but in fact politically motivated" says Piers Corbyn, head of Weather Action.

Professor Ian Clark from the Dept. of Earth Science at the University of Ottawa used to be a believer in global warming but after examining the science, now discusses what we're not being told about climate change.