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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: Global dimming
By Lightning III on 9/12/2007 1:45:57 PM , Rating: -1
No you myopic ass

To be more precise, it invalidates the theory that warming is causing more serious droughts.

10+ year droughts is what your article states

more severe could mean shorter hotter and ending in a flood event

and as for ice caps sure, only 10 percent of the time for all of history

but with man as the dominant species I think thats a 100% of that time

and what about the impact of all those frozen tons of methane underneath it

would it thawing all at once be the tipping point

and everything is pointing at co2 for the last mass extiction
“Estimates of the CO2 in the atmosphere then were between six and 10 times greater than they are today,” Frasier states. The largest continuous volcanic eruption on Earth – known as the “Siberian Traps” – had been pumping out CO2 for about a million years prior to the Permian-Triassic mass extinction

and who knows what real beneficial impact of having those ice caps was till they are gone as they are surely disappearing at an alarming rate

I'm looking foward to the russo canadian northwest passage war as every body is rushing to lay claim to the formerly ice covered areas

RE: Global dimming
By porkpie on 9/12/2007 2:03:28 PM , Rating: 1
and who knows what real beneficial impact...
The important point of your post is right there. Who knows? Certainly not you or anyone else. Homo Sapiens have been around for a few million years. We survived the last few times the ice caps vanished. I think we'll do just fine this time.

everything is pointing at co2 for the last mass extiction
Wrong again. The last major extinction was the K/T event, which almost certainly was caused by meteor impact.

No you myopic ass
Why so much emotion? Are you really such a fanatic you can't handle honest debate?

RE: Global dimming
By Lightning III on 9/12/07, Rating: 0
RE: Global dimming
By TomZ on 9/12/2007 4:20:14 PM , Rating: 2
to me he is the guy from the thank you for smoking movie, just insert global warming is a myth instead of smoking

I think quite possibly it's the other way around. The global warming enthusiasts, such as yourself, are like the general public who once believed from listening to the "consensus" from "health experts" (doctors) that smoking is good for you. At the time there were probably "smoking is healthy" skeptics, just like there are AGW skeptics today.

RE: Global dimming
By dever on 9/12/2007 2:04:03 PM , Rating: 2
Mature and compelling.

RE: Global dimming
By TomZ on 9/12/2007 3:03:02 PM , Rating: 2

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