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Ice Age Rapid rather than gradual

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Free World Order


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Ice Age Rapid rather than gradual PostThu Aug 07, 2008 3:47 pm  Reply with quote  

Last Ice Age happened in less than year say scientists
Published Date: 02 August 2008
By angus howarth
THE last ice age 13,000 years ago took hold in just one year, more than ten times quicker than previously believed, scientists have warned.
Rather than a gradual cooling over a decade, the ice age plunged Europe into the deep freeze, German Research Centre for Geosciences at Potsdam said.

Cold, stormy conditions caused by an abrupt shift in atmospheric circulation froze the continent almost instantly during the Younger Dryas less than 13,000 years ago a very recent period on a geological scale.

The new findings will add to fears of a serious risk of this happening again in the UK and western Europe and soon.

Dr Achim Brauer, of the GFZ (GeoForschungs Zentrum) German Research Centre for Geosciences at Potsdam, and colleagues analysed annual layers of sediments, called "varves", from a German crater lake.

Each varve records a single year, allowing annual climate records from the region to be reconstructed.

http://news.scotsman.com/scitech/Last-Ice-Age-happened-in.4351045.jp
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Free World Order


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PostThu Aug 07, 2008 3:49 pm  Reply with quote  

Global Warming?

Number one greenhouse gas?
http://en.wikipedia.org/wiki/Greenhouse_gas









Global Warming or Cooling? Which is it...both?
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PostSat Aug 09, 2008 7:27 am  Reply with quote  

The news story is a little inaccurate - the Younger Dryas was a cold period after the end of the last ice age.

It was previously thought to have taken no more tha 10 years for the cold period to start, and this latest evidence really just reinforces what was already thought to be the case.

A similar event occurred around 8,200 years ago. By then most of the ice sheets had gone and the result for Europe on that occasion was a drop in temperature of between 1c and 2c. So were it to happen today we'd likely see temps revert back to what they were in the 1970s .... hardly catastrophic.

That said, both the YD and 8.2kya event required a sudden massive influx of fresh water into the Labrador Channel. There's seems no conceivable way that would happen today unless half the Greenland ice sheet melted overnight.

http://www.geo.vu.nl/~renh/8200yrBP-event.html
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