|
Antarctic ice shelf retreats happened before the Great Pyramids
EFLA study of George VI Ice Shelf on the Antarctic Peninsula is the first to show that this currently 'healthy' ice shelf experienced an extensive retreat about 9500 years ago, more than anything seen in recent years. The retreat coincided with a shift in ocean currents that occurred after a long period of warmth. Whilst rising air temperatures are believed to be the primary cause of recent dramatic disintegration of ice shelves like Larsen B, the new study suggests that the ocean may play a more significant role in destroying them than previously thought. More evidence that man-made Global Warming may be less significant than natural and political factors. Posted by: Tom 2005-02-28 |
| http://www.rantburg.com/poparticle.php?ID=57664 |