lighthouse
08-13-2007, 02:14 PM
http://www.canada.com/nationalpost/columnists/story.html?id=61b0590f-c5e6-4772-8cd1-2fefe0905363
Global warming? Look at the numbers
A little less than a decade ago, the U.S. government changed the way it recorded temperatures. No one thought to correlate the new temperatures with the old ones, though -- no one until Canadian researcher Steve McIntyre, that is.
In many cases, the changes are statistically minor, but their potential impact on the rhetoric surrounding global warming is huge.
The hottest year since 1880 becomes 1934 instead of 1998, which is now just second; 1921 is third.
Four of the 10 hottest years were in the 1930s, only three in the past decade. Claiming that man-made carbon dioxide has caused the natural disasters of recent years makes as much sense as claiming fossil-fuel burning caused the Great Depression.
The 15 hottest years since 1880 are spread over seven decades. Eight occurred before atmospheric carbon dioxide began its recent rise; seven occurred afterwards.
In other words, there is no discernible trend, no obvious warming of late.
Ever since the correction became a hot topic on blogs, the pro-warmers have tried to downplay its significance, insisting, for example, that the alterations merely amount to "very minor rearrangements in the various rankings."
Global warming? Look at the numbers
A little less than a decade ago, the U.S. government changed the way it recorded temperatures. No one thought to correlate the new temperatures with the old ones, though -- no one until Canadian researcher Steve McIntyre, that is.
In many cases, the changes are statistically minor, but their potential impact on the rhetoric surrounding global warming is huge.
The hottest year since 1880 becomes 1934 instead of 1998, which is now just second; 1921 is third.
Four of the 10 hottest years were in the 1930s, only three in the past decade. Claiming that man-made carbon dioxide has caused the natural disasters of recent years makes as much sense as claiming fossil-fuel burning caused the Great Depression.
The 15 hottest years since 1880 are spread over seven decades. Eight occurred before atmospheric carbon dioxide began its recent rise; seven occurred afterwards.
In other words, there is no discernible trend, no obvious warming of late.
Ever since the correction became a hot topic on blogs, the pro-warmers have tried to downplay its significance, insisting, for example, that the alterations merely amount to "very minor rearrangements in the various rankings."