Earth and Antarctica were once much warmer.....
About 3.5 million years ago, it was very much warmer than today - about 2-3C warmer; but in the temperature region climate models suggest greenhouse gas emissions may be taking us again.About 2.5 million years ago, beech trees grew in Antarctica, and, like the much colder climate today, it had nothing to do with CO2.
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Struggle Seen As Sun Switches Magnetic Field Polarity [ 2001 ]
Unisci | January 29, 2001 | unattributed
Posted on 04/18/2007 12:59:07 PM EDT by SunkenCiv
http://www.freerepublic.com/focus/chat/1819395/posts
Small Organisms, Great Proxies
University of Arkansas | Monday, October 23, 2006 | Melissa Lutz Blouin
Posted on 01/12/2007 1:47:54 AM EST by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1766349/posts
“In addition, the paleorecord of the fossilized organisms from one of the lakes reflects a climate-changing event at the end of the last Ice Age more than 8,000 years ago. Together, these findings indicate that fossil diatoms in lake sediments provide a strong proxy for paleoclimatic and paleoenvironmental change...”