more on Global Warming

Bizarre Science has an excellent article on the current Global Warming issue. bq. Too many scientists have based their research, their reputations and their incomes on the greenhouse theory to let it go now. bq. So rather than debate the growing evidence that the greenhouse theory is fundamentally flawed, many greenhouse-believing scientists have begun viciously attacking those who question its conclusions and denouncing any agnostic as a heretic -- especially ones presenting uncomfortably challenging proof. more bq. The "hockey stick" has been among the holiest of holies in the greenhouse priests' liturgy. It purports to show relatively stable climate for the 900 years from 1000 to 1900, then a sharp spike upward from 1900 to today. Its implications for the greenhouse theory are so central that it formed an integral part of the UN Intergovernmental Panel on Climate Change's vaunted 2001 report, the one that claimed to confirm disastrous manmade greenhouse warming. bq. We have known for a long time that the hockey stick compared apples and oranges -- reconstructed temperatures from 1000 to 1900 (temperatures deduced from studying tree-ring growth and ice cores, et cetera) and measured temperatures from 1900 onward. When the 20th century's temperatures are "reconstructed" they don't show the warming the hockey stick theory shows. bq. But what McIntyre/McKitrick also reveal is the data used to craft the hockey stick are based on "collation errors, unjustifiable truncation or extrapolation ... obsolete data, geographical local errors, incorrect calculation ... and other quality control defects." The wrong places, the wrong dates and the wrong numbers were jumbled together to produce the results the authors desired -- proof that industrial societies are threatening the planet and only global regulation by the UN can save it. bq. For instance, the data used for calculating Central Europe's climate history stops at 1730, but the source data available goes back to 1659. Coincidentally (or not) those 70 missing years were the coldest of the Little Ice Age. If your goal was to show flat temperatures for 900 years, followed by a steep rise during the Industrial Age, leaving out those seven decades would help do the trick. bq. Three such "unjustified truncations" were uncovered by McIntyre/McKitrick. Of 112 temperature records used to create the hockey stick, 13 were incorrectly copied down, 18 mismatched the year and temperatures, 19 made unjustifiable extrapolations to cover missing data, 24 contained obsolete data and all 28 that used tree-ring data miscalculated the information obtained by reading the rings. That's a total of 105 records with errors, although some contained multiple errors, so there were more than seven data sets that were error-free, but not many more.

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This page contains a single entry by DaveH published on November 14, 2003 2:30 PM.

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