Tuesday, August 20, 2013

A Tale of Two Climate HockeySticks

A more detailed examination of thermometer data of the 20th century shows a major warming between 1910 and 1940, a slight cooling between 1940 and 1975, and a disputed temperature history of the last two decades of the century.  It is interesting and worth noting that Mann's HS graph stops just before 1980 -- even though the use of proxy data would indicate an absence of warming from 1980 to 2000. 

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