Much ado has been made about Penn State University's Michael Mann and his "hockey stick" chart that showed a dramatic upswing in global temperatures based on the warm year of 1998, which Mann appears to have exploited in a big way. The chart has been de-bunked yet he continues to arrogantly champion what it indicates.
Ok, let's appease Mr. Mann. Let's assume that his "hockey stick" chart has not been de-bunked, is valid, and will stand the test of time. Now let's put it to an historical test.
Take note of how insignificant Mann's chart is when viewed in the scope of 10's of thousands of years. Not only doesn't it stand up (even if it hadn't been de-bunked) but the Medieval Warming Period (MWP) around the year 1000 still dwarfs it.
A lot of people should be going to jail.
h/t to WUWT
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