Jerry Pournelle seriously doubts that Michael Mann [Penn State's most famous fraudster] can possibly know what he claims to know about world temperatures one thousand years ago. His points are good ones, and not original with him, but rarely expressed as plainly. There is no objective measure of global temperatures, and even if there were, there is no way of calculating past temperatures with the degree of precision necessary to construct Mann's famous "hockey stick" graph. Finally, it is suspicious that Mann, rather than revealing in detail his methodology and data, chooses instead to launch ad hominem attacks on his critics. Why academic institutions allow Mann and his cronies at East Anglia to coast is beyond me. They do no credit to the institutions that sign their paychecks.
Read Pournelle's piece here.
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