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Antarctic Ice Sheet - It's Never Been Very Stable
science20.com ^ | May 28th 2014 03:34 PM

Posted on 05/28/2014 3:12:14 PM PDT by BenLurkin

Evidence for massive and abrupt iceberg calving in Antarctica dating back 19,000 to 9,000 years ago is based on an analysis of new, long deep sea sediment cores extracted from the region between the Falkland Islands and the Antarctic Peninsula.

The study in Nature documents that the Antarctic ice sheet is unstable and can abruptly reorganize Southern Hemisphere climate and cause rapid global sea level rise.

What brought about such huge ice-sheet collapses in Antarctica back then, since there was no Anthropocene to implicate? For that, the researchers had to fall back on climate modeling experiments.

(Excerpt) Read more at science20.com ...


TOPICS: Science
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1 posted on 05/28/2014 3:12:14 PM PDT by BenLurkin
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To: BenLurkin

You beat me to it! Quite an article to be released just now. Climate change is and has always been a constant fact of life. Climate change in Africa was instrumental in the history of our species for one thing. Mideast archaeology is filled with climate crisis and periods of lush growth. We have very short ranged thinking due to our relatively short lifespan. However, the settlement of the Nile River valley was, in part, prompted by the desertification of the Sahara.


2 posted on 05/28/2014 3:23:54 PM PDT by JimSEA
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To: JimSEA

SPA90, KC4AAA ping


3 posted on 05/28/2014 3:30:42 PM PDT by kinsman redeemer (The real enemy seeks to devour what is good.)
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To: JimSEA

Inter glacial period.

Roman Warm Period.

Dark Ages.

Medieval Warm Period.

Little Ice Age.

Man had nothing to do with them. Climate scientists can’t say why they occurred. The devout AGW priests would rather that some of them just go away.


4 posted on 05/28/2014 3:36:32 PM PDT by henkster (Do I really need a sarcasm tag?)
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To: BenLurkin

Antarctica sheds ice like a dog sheds fur!


5 posted on 05/28/2014 4:20:44 PM PDT by Jack Hydrazine (Pubbies = national collectivists; Dems = international collectivists; We need a second party!)
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To: BenLurkin

48 degrees in NE Mass today.
I could use a little globull warming right now


6 posted on 05/28/2014 4:38:02 PM PDT by GQuagmire
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To: GQuagmire

“48 degrees in NE Mass today.”

I’m in MA too-—what a lousy spring,after a very cold winter.

.


7 posted on 05/28/2014 4:39:53 PM PDT by Mears
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To: BenLurkin
What brought about such huge ice-sheet collapses in Antarctica back then, since there was no Anthropocene to implicate?

I think the glaciers flow down and the ice off shore builds, finally pressure or even warm water from geologic processes causes the grounded ice to detach from the bottom and large float away.

8 posted on 05/28/2014 5:02:07 PM PDT by Mike Darancette (Do The Math)
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To: Mike Darancette

Large chunks float away.


9 posted on 05/28/2014 5:05:21 PM PDT by Mike Darancette (Do The Math)
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