New Zealand Herald: The world will be hotter than we think if no action is taken to cut greenhouse emissions, a Wellington conference will hear today. United States climate modelling expert Matthew Huber – who is speaking at the Greenhouse Earth Symposium at Te Papa today – says at least one climate model used by the Intergovernmental Panel on Climate Change produces temperatures that are cooler than the real world. Dr Huber is one of several visiting scientists who use a dramatic period of warming 55 …