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Offline Ghost1

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Prepare for new Ice Age
« on: Apr 03 2011 - 10:17AM »
Prepare for new Ice Age now says top paleoclimatologistby 

By Terrence Aym 
March 28, 2011


Geologic records show that Ice Ages are the norm, punctuated by  brief periods of warming. Now one of the most highly respected  paleoclimatologists has weighed in and is warning everyone to prepare  for a new Ice Age.

A new Ice Age? Then what's all the brouhaha about man-made global warming over the past 20 years?

George  Kukla, 77, retired professor of paleoclimatology at Columbia University  and researcher at the Lamont-Doherty Earth Observatory responds, "The  only thing to worry about global warming is the damage that can be done  by worrying. Why are some scientists worried? Perhaps because they feel  that to stop worrying may mean to stop being paid."           

The "Earth has experienced an ongoing cycle of ice  ages dating back millions of years. Cold, glacial periods affecting the  polar to mid-latitudes persist for about 100,000 years, punctuated by  briefer, warmer periods called interglacials," Kukla says.

Co-author  of an important section of the book "Natural Climate Variability on  Decade to Century Time Scales," Kukla asserts all Ice Ages strat with a  period of global warming. They are the the harbingers of new Ice Ages.  Actually, he explains, warming is good. Ice Ages are deadly and may even  kill millions.

Can Mankind stop it? No. Just as humanity cannot  affect the long term climate of the planet, neither can it stop an Ice  Age from happening. The climate is primarly driven by the sun.

"I  feel we're on pretty solid ground in interpreting orbit around the sun  as the primary driving force behind Ice Age glaciation," he says. "The  relationship is just too clear and consistent to allow reasonable doubt.  It's either that, or climate drives orbit, and that just doesn't make  sense."

Human influence

Ultimately, Kukla warns, human  activities may have an impact more on water vapor in the atmosphere than  any real affect on global temperatures. Neither does the activity have  any real impact over climate cycles. He does admit, however, that the  current level and type of human activity may have some impact on a  transition towards encroaching glacial conditions, increase the polar  water flow and accelerate the coming Ice Age.

He explains that  glaciation during an Ice Age comes from the icecaps. The poles only  account for about 14 percent of the entire Earth's surface. The Ice Age  begins at the poles and ends at the poles and is fed by water vapor  moving to the extreme north and south from the tropics.

During a  lengthy interview with Gelf Magazine, Kukla explained: "What is  happening is very similar to the time 115,000 years ago, when the last  glaciation started. It is difficult to comprehend, but it is really so:  The last glacial was accompanied by the increase of a really averaged  global mean surface temperature, alias global warming.

"What  happened then was that the shifting sun warmed the tropics and cooled  the Arctic and Antarctic. Because the tropics are so much larger than  the poles, the area-weighted global mean temperature was increasing. But  also increasing was the temperature difference between the oceans and  the poles, the basic condition of polar ice growth. Believe it or not,  the last glacial started with 'global warming!'"

So, as more  water vapor's carried to the poles the southern icecap calves and  thickens, the extreme center of the northern pole gradually becomes  ice-free and the lower latitudes experience heavier snowfalls that  gradually start migrating towards the south.

That's exactly what's happening now.

Although  criticized in the past for his views on global cooling in the face of  political moves to support the opposite, Kukla feels he's vindicated.  "None of us expected uninterrupted continuation of the trend." On the  contrary, Kukla and his colleagues expected a warming blip and it  occurred like clockwork. He knows that global warming always precedes an  Ice Age. The history of that is in the ice core records repeating  itself every 100,000 years or so over millions of years.

Adamant  that humans have little to do with warming or cooling and that cooling  would be a disaster of indescribable proportions, Kulka wrote to the  United States Congress: "…a global deterioration of climate, by order of  magnitude larger than any hitherto experienced by civilized mankind, is  a very real possibility and indeed may be due very soon. The cooling  has natural cause and falls within the rank of processes which produced  the last Ice Age."

Ice Age catastrophes

Generations ago,  scientists believed Ice Ages advanced slowly taking tens of thousands of  years. Now some researchers have revealed startling evidence that an  Ice Age can be triggered in under 10 years.

Warming is much more preferable than cooling. Warming would actually help Mankind; cooling will do just the opposite.

Kukla  and his colleagues warn that as the ice starts marching southward from  the Arctic there will be "substantially lowered food production" and  evidence will abound of "extreme weather anomalies" in both the northern  and southern latitudes.

Global superstorms may break out. Some  regions may experience anomalous cold spells while others roast from  spiking temperatures never before seen by civilization.

Those things too are exactly what's happening now.

So  is Man responsible in any way for "global warming?" Kulka thinks, "Man  is responsible for a part of global warming; most of it is still  natural."

Wild cards

Not taken into Kulka's model of an  encroaching Ice Age are the facts and possible impact of the magnetic  pole shift, the shifting core of the Earth, or the revelation by NASA  and the ESA that the sun is going to fall into a quiet period for the  next 30 to 50 years.

That exceptional solar minimum cycle is expected to start in 2014, perhaps earlier.

It  seems the odds are good that the Earth will slip into an extended  cooling, or so-called mini-Ice Age. Whether that becomes an extended  100,000 year full-fledged Ice Age even Kulka doesn't know.
Sources
"Scientist Refutes Notion of Recent Climate as 'Uniquely Benign' —Sees Evidence of Approaching Ice Age Despite Global Warming," Earth Institute Columbia University

"Forget warming—beware the new Ice Age," Canada.com

"An Unrepentant Prognosticator—Climatologist George Kukla still believes an ice age is likely," Gelf Magazine
George Kukla's biography (published by Canada.com):
George  Kukla, micropalentologist and Special Research Scientist at the  Lamont-Doherty Earth Observatory of Columbia University, is a pioneer in  the study of solar forcing of climate changes. He was the lead author  of the scientific paper that first supported Milutin Milankovic's theory  of glacial cycles by investigating the stratigraphy in deep-sea  sediment cores from the southern Indian Ocean. In the cores were clear  imprints of Milankovic's proposed cycles. In his paper he wrote, "We are  certain now that changes in the Earth's orbital geometry caused the ice  ages. The evidence is so strong that other explanations must now be  discarded or modified." Prior to joining Columbia in 1971, he had  published landmark studies in Czechoslovakia, where he was a member of  the Czechoslovakian Academy of Sciences.

Source: http://www.helium.com/items/2125333-prepare-for-new-ice-age-now-says-top-paleoclimatologist
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Offline Swampertchamp

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Re: Prepare for new Ice Age
« Reply #1 on: Feb 01 2012 - 05:25PM »
If there is going to be an ice age in the next hundred years, we will have probably found a way on how to keep our self's alive   :^:

 


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