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do ice ages only occur in the northern hemispher or the north pole ... has there ever been an ice age in the south pole..if it only occurs in the north why?

2007-07-26 17:11:36 · 4 answers · asked by Anonymous in Science & Mathematics Earth Sciences & Geology

4 answers

They do. But if you look at a map, you will notice that there isn't much land near the South Pole other than Antarctica. So all of the southern land ice stays in Antarctica

Besides, the Northern Hemisphere has been studied more, since most scientists live there. So most of the books that you read will talk about the Northern Hemisphere.

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At the end of the last Ice Age, the Northern and Southern hemispheres both underwent a series of climate changes that eventually led to deglaciation. This much is known. But researchers have long wondered about the extent to which one hemisphere's climate activity influenced the other. Scientists have put forth three models: one holds that northern ice sheets drove climate shifts in the south; another posits that the two changed in unison; and a third model, proposed more recently, suggests that climate change occurred first in the Southern Hemisphere. Now new research, published today in the journal Nature, offers support to idea number two: the hemispheres experienced the fluxes hand in hand.

University of Cincinnati geologist Thomas Lowell and his colleagues extracted sediment cores from three lakes in southern Chile. Analyses of the cores' pollen records, which tracked changes in local vegetation between 13,000 and 10,000 years ago, yielded unanimous results: climate change in Chile matched the pattern and timing of warming and cooling in the North Atlantic....

2007-07-26 17:21:32 · answer #1 · answered by Randy G 7 · 1 0

In the high country of Australia there is evidence of glaciation. There is a cirque, a few moraines and some glacial lakes.

New Zealand is heavily glaciated.

But the clincher is that there is still an icecap in Patagonia in South America.

2007-07-26 17:33:00 · answer #2 · answered by iansand 7 · 2 0

When discussing the 'location` of ice ages, remember that on that time scale land masses weren't always where they are now.

2007-07-27 15:01:27 · answer #3 · answered by Irv S 7 · 0 0

actually due to the ability to test the age of things in natural rings they know the whole world other than small parts of canada were effected completly

2007-07-26 17:20:59 · answer #4 · answered by Anonymous · 0 0

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