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Super Storms - Super Storms 2 |
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Written by David Thomson
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Page 2 of 4
Now if the Thermohaline Circulation was the significant factor in global cooling, and it couldn’t be because it only shifts heat from one location to another, then why did Canada end up with vast ice sheets and Siberia and Alaska did not? The cold air from the Thermohaline Circulation would have had to travel all the way around the planet, across Siberia, and the Pacific Ocean before it would get back to Canada. Certainly we would see ice sheets form over Asia or Siberia before we would see ice sheets in Canada. But it didn’t happen.
So even though we know that Thermohaline Circulation failure does occur at the same time as abrupt global climate change, it must be the effect of a greater system and not the cause of global cooling. Dr. Richard Seager of Columbia University's Lamont-Doherty Earth Observatory has also concluded that Thermohaline Circulation is not the dominant factor in determining climate variability.
The third observation is based on sketches drawn by the Illinois State Geological Survey that the Canadian Laurentide and Cordellian Glaciers were formed primarily in two separate locations. I’ll explain this by referring to the graph at the right.
The ice sheet is not static. It is actually a river of ice. But unlike mountain glaciers that form at the top of a mountain and run down a ravine, the Laurentide and Cordellian glaciers formed over relatively flat land. The glaciers flowed outward in a full 360 degrees from a central point. In order for this to happen, all of the snow would have to fall at these two particular central points.
The Cordellian Glacier formed at a point just west of Hudson. The Laurentide Glacier that spread in all directions and from Canada down through the Great Lakes, and as far south as Illinois, began over Labrador, Canada. Now if the widely accepted view of ice sheet formation were correct, the ice sheet would have been formed from falling snow over a long period of time and it would have been spread more evenly across the continent. But the data does not support an ice sheet formed from snow falling over a broad area.
The fourth observation is that at 11,500 years ago the Atlantic Conveyor extended well into the Labrador Sea and all the way up into the Norwegian Sea. The data for this observation was published in the late seventies, but now there is no readily available data either way. It is likely this crucial data is being ignored by the scientific community because it raises grave doubts about the Thermohaline Circulation theory as being a driver of global climate.
The significance of this observation is that the Atlantic Conveyor brings warm water into the northern latitudes. Since the atmospheric temperature over Greenland warmed up over 15 degrees F it is reasonable to expect the ocean temperatures also warmed up. Even today the Atlantic Conveyor, also known as the Gulf Stream, exceeds temperatures of 80 degrees F.
That the Atlantic Conveyor extended much further into the Labrador and Norwegian Seas is of particular interest as far as the super storm theory goes. I’ll explain this a little later.
The fifth observation goes back to the Greenland ice cores. According to Richard Alley the data suggests that as Greenland became warmer 11,500 years ago, it also became stormier.6 And this is the key to understanding rapid climate change. If there is going to be a rapid decrease in global temperature, and we’re talking less than a year, then there has to be a very energetic mechanism for removing the heat from the atmosphere.
Kerry Emanuel is a well-published meteorologist from Massachusetts Institute of Technology. He has designed a computerized hurricane simulator. Without even looking for super storms, Kerry Emanuel found that super storms do fit the present understanding of hurricane mechanics, even if they don’t physically occur at this time.
In an extreme super storm case, according to Kerry Emanuel, “Winds whip around its center at 500 miles an hour. Water vapor, sea spray and storm debris are catapulted into the atmosphere, punching a hole in the stratosphere 20 miles above the Earth's surface.”
So we know that rapid global cooling requires the removal of an enormous amount of heat from the Earth in a very short time and the Thermohaline Circulation theory does not remove heat from the Earth, it merely displaces it somewhere else. We know that ice sheets didn’t form uniformly across the Polar region, but start from very localized points near the Arctic Circle. We know when the Earth’s temperature rises, the Atlantic Conveyor extends further north into the Labrador and Norwegian Seas. And we know unusually strong storms occurred in Greenland 11,500 years ago and at the time of abrupt climate change.
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Last Updated on Monday, 08 February 2010 15:49 |
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