The Role Of Global Temperature In Pre-Industrial Times

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In pre-industrial times, it is claimed that the average global temperature was relatively unchanging, but it did sky-rocket since 1900 and over the next 100 years it will increase by several degrees, according to Penn State University researcher Michael Mann. It is not proven that past climate was unchanging, or that average global temperature is unusual or unnatural. Michael Mann has actually shown that the Ice Age and Medieval warm period in fact exist, which contrasts with his earlier work that produced the “hockey stick graph” and over the past thousand years or so followed by a recent dramatic upturn, showed a constant temperature. Since the cause of global warming is mainly natural there is in actual fact, very little we could do about

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