The hypothesis of global warming includes the presumption that late 20th century warming was caused by human emissions. This theory has failed the three main tests to which it has been subjected. First, there is no relationship between the 20th century patterns of increasing carbon dioxide and changing temperature; second, 20th century rates and magnitude of temperature change fall well within previous natural limits of change despite accompanying increases in human-sourced carbon dioxide; and, third, the computer models used to engender public alarm have proved unable to predict temperature change over the period 1990 -2006, let alone out to 2100.
| 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. |
| Imagine if the shoe were on the other foot. Imagine the shrieking of the warmers if we had previously thought that hot years were scattered throughout the past 130 years, but after a correction the warmest years could be seen to be concentrated in the past decade. |
| They would insist the revised data proved their case. |
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