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Originally Posted by Polynikes
For example, your link is in my most recent response to jack. It's called the Wegman report.
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My understanding is the Wegman report says Mann used the wrong statistical technique. You've claimed he dishonestly manipulated data and was "repudiated". Those are two very different things, and as I said earlier you get caught doing something dishonest in science and your career is over. You can crack about tenure all you want but it is no defense against dishonesty in research. Just ask that Korean guy that went from a star of South Korea to a pariah overnight.
Meanwhile, the existence of the hockey stick increase in temperature has been independently verified by continuing research. So regardless of of the quality of Mann's papers, the sudden increase in temperature still exists. He was essentially vindicated by a 2006 National Research Council report (discussed in my link in my previous post). From the report:
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The basic conclusion of Mann et al. (1998, 1999) was that the late 20th century warmth in the Northern Hemisphere was unprecedented during at least the last 1,000 years. This conclusion has subsequently been supported by an array of evidence that includes both additional large-scale surface temperature reconstructions and pronounced changes in a variety of local proxy indicators, such as melting on ice caps and the retreat of glaciers around the world, which in many cases appear to be unprecedented during at least the last 2,000 years.
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