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The Dust Bowl of the 1930s was the worst drought in US history
A primary tenet of global warming alarmism is invalidated.

A recurring theme in my past columns is that a moderate degree of global warming is likely to be beneficial to mankind. Al Gore, on the other hand, says climate change is already causing catastrophic results. In testimony before Congress last March, he stated, "droughts are [already] becoming longer and more intense". But the findings of a group of University of Wisconsin-Madison researchers say otherwise.

The scientists, led by Gemma Narisma, examined 100 years of global rainfall data. Using sophisticated wavelet analysis methods, they identified 30 cases of severe droughts lasting 10 or more years. The results showed the number of droughts dropping sharply over time. From 1900-1920, seven droughts, another seven from from 1920-1940, and eight from 1940-1960. But after that, the picture changes. In the period 1960-1980, only five droughts were recorded, and from 1980-2000 (the warmest period of all), only three occurred. Furthermore, of the most severe droughts, none began in the last 30 years..

The researchers found another surprising result. Changes in rainfall levels are not only much more common than previously thought, but they tend to occur in a very abrupt, unexplained manner. More proof that climate change is part of nature.

The work represents the first systematic survey of abrupt climate changes that have occurred in recent history. Professor Johnathan Foley, who also participated in the research, says the study is important, "because previous work largely focused on ancient climates or theoretical changes in future climates".

The findings are published in Geophysical Research Letters.

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RE: If you stop and think about it.....
By cochy on 9/12/2007 12:53:16 PM , Rating: 3
People are trying to point out that Humans aren't hastening it. It seems to be a pretty open question anyway at this point.

However, if you look at the history of the planet during which humans thrived, I think you'll find polar ice caps quite common.

You also missed the point that "the time which humans thrived" is a very small period of time and thus we need to examine how the polar ice caps have waxed and waned over much longer periods to reach any meaningful conclusion on the matter.

RE: If you stop and think about it.....
By Murst on 9/12/2007 2:31:36 PM , Rating: 1
Nah, I didn't miss the point. In fact, I don't care about any other point other than the one where humans have been around. Sure, it may be egotistical, but I'd prefer if humans were around in a million years. I don't want some rat-bear-monkey mix posting on an Internet site a million years from now about the downfall of the human race. :)

By Eris23007 on 9/12/2007 6:25:54 PM , Rating: 3
Watch out for ManBearPig!!!! I'm TOTALLY CEREAL!!!


By Pythias on 9/13/2007 8:48:51 PM , Rating: 2
Well you should. Otherwise, climate statistics are skewed.

"Spreading the rumors, it's very easy because the people who write about Apple want that story, and you can claim its credible because you spoke to someone at Apple." -- Investment guru Jim Cramer
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