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Ocean Currents

Posted Saturday, November 12, 2011, at 6:46 PM

Many climate scientists now agree that global warming, primarily cyclical in nature due to fluctuations in solar activity, could trigger a new ice age in the Northern Hemisphere. Some of them believe this potential catastrophic event has already been set in motion.

In March of 2004, NASA reported that views from orbit "clearly show a long-term decline in the perennial Arctic Sea ice." Scientists at NASA and elsewhere worry that melting ice will dump enough freshwater into the North Atlantic to interfere with ocean currents.

Receding ice cover in the Arctic exposes more of the ocean surface, causing more moisture to evaporate, leading to more rainfall and snowfall in the northern latitudes.

The oceans circulate water in a pattern called the "Great Ocean Conveyer."

Saltwater is denser (heavier) than freshwater. The surface water needs to sink to drive the Conveyer. Sunken water flows south along the ocean floor toward the equator, while warm surface water from the Tropics flows north to replace the water that sank. An increase of freshwater could prevent the sinking of North Atlantic surface waters, stopping the circulation.

Evidence developed from tree rings and ice cores indicates that the Earth's climate has shifted abruptly in the past. As the world warmed at the end of the last ice age, melting ice sheets appear to have caused a sudden halt to the Conveyer, creating ice-age-like conditions for the next 1,300 years called the "Younger Dryas."

Without the warmth the ocean currents deliver, Europe's average temperature would drop 10 to 20 degrees Fahrenheit. Portions of eastern North America would also drop in temperature but not quite as much.

These types of abrupt climate changes could result in massive crop failures, leading to global food shortages.

A secret report commissioned by the Pentagon in 2004, leaked to the press four months later, warns that climate change over the next 20 years (or less) could result in a global catastrophe costing millions of lives in wars and natural disasters.

In what is described as a contingency scenario, the report warns that major European cities will sink beneath rising seas as Britain is plunged into a frigid climate by 2020. Dwindling food, water and energy supplies throughout the planet will generate global anarchy. The report concludes, "Disruption and conflict will be endemic features of life. Once again, warfare would define human life."

Whether a catastrophic global climate change will occur in the near future is uncertain. If it does happen, it will take two to three years (perhaps as long as a decade) to unfold, a very short period of time in geological history but plenty of time in human existence to prepare for the consequences.

If this scenario occurs, there will be food shortages, followed by a Mad Max reality of civil mayhem.

Be prepared (Boy Scout motto) -- avoid living near the ocean, avoid living in or near a big city, have a reliable source of fresh water and keep plenty of non-perishable food in store. Plus, lots of ammo. In self-survival, anything goes.

We live in precarious times. Man's inhumanity to man continues to haunt the world and the whims of the universe are mostly beyond our control.

Mother Nature is indifferent to the survival of mankind -- we can only hang on and go along for the ride.

Keep your powder dry and your nose to the wind.

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Quote for the Day -- "Instead of working for the survival of the fittest, we should be working for the survival of the wittiest -- then we can all die laughing." Lily Tomlin

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Bret Burquest is the author of 7 books, including THE REALITY OF THE ILLUSION OF REALITY and ORB OF WOUNDED SOULS (available on Amazon). He lives in the Ozark Mountains with a dog named Buddy Lee and an imaginary girlfriend named Lois Lane.

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Comments
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This assumes that the global climate has a warming trend. At the present time there isn't any evidence of that (despite global CO2 levels continuing to rise every year since 1979). A graph of satellite-based temperature readings since 1979 is here: http://www.drroyspencer.com/wp-content/u...

It appears that there hasn't been any 'global warming' since the 1998 El Nino year (which caused a sudden abrupt spike in the graph). In the next few years (from 2011) there may even be a slight cooling trend. We don't know for sure. If a cooling trend occurs there is a good chance that the *summer Arctic sea ice extent will return to previous levels. Note that the *winter Arctic sea ice extent has been roughly normal. Also there is an enormous amount of ice on the land in the Arctic, eg. the Greenland ice sheet covers 660,235 sq miles and is an average 1 1/2 miles thick - it is the second largest ice body in the world, after the Antarctic Ice Sheet. Also the Antarctic sea ice extents have been roughly normal, and there isn't any conclusive evidence to prove that the Himalayan glaciers are in danger (for example). Some Himalayan glaciers, such as the Siachen glacier, are actually advancing.

Like you say: "Whether a catastrophic global climate change will occur in the near future is uncertain." So, surely it is unreasonable to scare the people with drastic warnings like: "a global catastrophe costing millions of lives in wars and natural disasters."

-- Posted by Peter_Yates on Tue, Nov 15, 2011, at 1:23 AM

A friend called my attention to something I'd asked about - dropping it into your archived posts Bret, was I thought the better means of getting it to you. May, may not find it useful, perhaps only "interesting" at least for the fewest of minutes.

What this page is showing is a livestream of Wikipedia edits. (I used it last during a Republican debate - you perhaps of most people round here, wouldn't find it surprising the edits frequency very sharply rises.)

Best:

http://inkdroid.org:3000/

-- Posted by HDucker on Fri, Dec 23, 2011, at 4:59 PM

This was a well written article I found the same science in the book "The Coming Global Superstorm" by Art Bell and Whitley Strieber. Interesting that nobody pays much attention to the Arctic ice being nearly all melted; altho every once in a while some one hollers about the polar bears losing their habitat. On the other hand, I have heard many republicans say there is no such thing as global warming. Ho hum.

-- Posted by mozarkann on Tue, Dec 27, 2011, at 1:22 AM

This was a well written article. I found the same science in the book "The Coming Global Superstorm" by Art Bell and Whitley Strieber. Interesting that nobody pays much attention to the Arctic ice being nearly all melted; altho every once in a while some one hollers about the polar bears losing their habitat. On the other hand, I have heard many republicans say there is no such thing as global warming. Ho hum.

-- Posted by mozarkann on Tue, Dec 27, 2011, at 1:23 AM


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Bret Burquest is a former award-winning columnist for The News (2001-2007) and author of four novels. He has lived in Minneapolis, Los Angeles, Miami, Atlanta, Kansas City, Memphis and the middle of the Arizona desert. After a life of blood, sweat and tears in big cities, he has finally found peace in northern Arkansas where he grows tomatoes, watches sunsets and occasionally shares the Secrets of the Universe (and beyond) with the rest of the world.
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