WHEN the global warming catastrophe movie The Day After Tomorrow was released in 2004, climate scientists found themselves in the unenviable position of having to put the facts in the way of a good story. The premise of the film is that climate change causes the Gulf Stream to shut down abruptly, plunging the northern hemisphere into a sudden and catastrophic ice age. Although loosely based on science, the deep-freeze scenario is wildly implausible and scientists queued up to pour cold water on it. "It is safe to say that global warming will not lead to the onset of a new ice age," two distinguished climate scientists wrote in the journal Science.
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