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The hottest years on record in places where temperature records have been kept were the 1930’s. We have seen nothing like the 100 deg + and 90 deg + days in terms of percentages since then. What has changed is winters have been more mild much of which has to do with the urban heat island effect. Further, why did NASA and NCAR erase all the global cooling that occurred between 1940 and 1970 that was shown on all their graphs from the late 70’s and 90’s?

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