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Showing posts with the label michael mann

Responding to the CO2 Coalition's "Facts #22 and #24" on Ideal Temperature

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CO2 Coalition 's " Fact #22 " and " Fact #24 " are designed to make you think that warm is better than cold for global temperatures and climate scientists like Michael Mann we should return the Earth's temperature to an "ideal" temperature during the Little Ice Age (LIA). In their "fact #22," they claim that "The most dramatic advances in civilization took place during the last four warm periods—including our own. The advancement of science, technology and the arts have been directly linked to warmer weather." To support this, they show a graph of Greenland Summit temperatures from the GISP2 ice core.   I've  pointed out elsewhere  many of the problems they have when they use this graph to confuse local with global temperatures and misplot "current temperatures" from Box 2009. But here they add another layer of confusion to the claims they've made before because none of these "advancements in science, tech...

The Hockey Stick and the Mann v. Ball Libel Suit

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By 2007, the MBH98/99 papers had been thoroughly investigated. The MBH hockey stick was found to be robust to statistical method and it was replicated by multiple other reconstructions (above, and discussed  here , here and here ). After the CRU emails were hacked and published, a new set of conspiracy theories were popularized on blogs and YouTube - these were based on a misreading of various emails (discussed  here and here ), but contrarian rhetoric was ramping up to a frenzy. Mann was frequently labeled a criminal and fraud, the hockey stick was called a scam or a hoax.  The Mann v Ball Libel Suit In an interview with the Frontier Centre for Public Policy  (FCPP), Tim Ball was asked, "Various government and academic agencies have whitewashed the Climategate scandal so far. Do you think anyone will be prosecuted for fraud?” Tim Ball's response was, “Michael Mann at Penn State should be in the State Pen, not Penn State.” This was posted on the FCPP website and a...