Thursday, August 23, 2007

Attention global warmenisers

Err.. you know that whole thing, about 1998 being the hottest year on record.. you know, Al Gore went on about it in his blockbuster film better stop using that argument.

The latest wrinkle in the global-warming controversy finds the National Aeronautics and Space Administration quietly correcting its historical data to compensate for an earlier error, a correction that should deflate some of the recent panic-mongering about an apparently warming Earth. The correction reduced the average temperatures for 2000-2006 in the continental United States by about 0.27 degrees Fahrenheit (with many stations showing lower readings and many showing readings much above average).

That dethroned 1998 as the hottest year on record, a distinction in the NASA data set that now belongs to 1934 (by an insignificant margin over 1998). Several other recent hot years were moved down in the rankings, and the 1930s now account for four of the top 10.

The number changes don’t greatly affect worldwide averages - but they reveal a disturbing arrogance among scientists in the community of global-warming true believers.

The data-handling error - the assumption that one set of numbers was identical to another when it was not - was discovered by Canadian researcher Steve McIntyre, who notified NASA on Aug. 4. NASA almost immediately corrected its Web site, but without any notice of the changes. You can bet that if the correction had shifted the data the other way, there would have been press releases, news conferences and lugubrious music on the TV news. As it was, it was left to the conservative blogosphere to spread the word; the mainstream media ignored the episode.
(hat tip: Greenie Watch)