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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (16606)	10/2/2007 8:21:59 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 36918

Melting is a late sign. I think it is too complex for you to understand, so it's always nice to take refuge in da Nile. Not as scary that way. An interesting twist to this is that future scenarios from global climate change models suggest that Antarctic snowfall should actually increase in a warming climate, as the warmer atmosphere comes with a greater capacity for moisture. Intuitively, increased snow accumulation supports ice sheet thickening. worldclimatereport.com Predicted long ago...but only valid in a world 4 billion+ years old. Deciphering Mysteries of Past Climate From Antarctic Ice Cores -------------------------------------------------------------------------------- Earth in Space, Vol. 8, No. 3, November 1995, p. 9. © 1995 American Geophysical Union. Ice cores drilled at Vostok Station, Antarctica, 10 years ago by Russia, France, and the United States (see figure 1) are providing a wealth of information about past climate and environmental changes over more than a full glacial-interglacial cycle. The ice cores show that East Antarctica was colder and drier during glacial periods than during the Holocene and that atmospheric circulation was more vigorous during glacial times. The ice cores also support evidence from studies that use deep-sea sediment to reconstruct changes in past sea level and oceanic temperature Ice sheet modeling is used to date ice cores and study long-term interaction between climate and the dynamics of large ice sheets. Information gained from studies of ice texture and fabric, ice rheology, and ice densification is crucial to this objective. Models predict that the ice sheet over Vostok will thin during cold periods. In agreement, the long-term trends of total air content in the ice show that during colder periods air pressure was higher. This supports the idea that elevation of the ice sheet was lower. Other studies confirm that microorganisms—including species that have disappeared elsewhere—could survive in the deep Antarctic ice for many thousands of years following anabiosis. agu.org

To: Brumar89 who wrote (16606)	10/2/2007 8:25:42 AM
From: Sam	Read Replies (2) \| Respond to of 36918

Typically, you're ignoring simple facts. Antarctica is a desert at extremely cold temperatures. Warming in that situation causes more precipitation than was historically the case. In Antarctica's case, the precipitation falls in the form of snow and ice. Other ice sheets in Antarctica that are closer to the equator and therefore already slightly warmer are in fact melting. Several gigantic ones are causing shipping problems for Chile and Argentina. It all depends on where you look. It has nothing to do with dismissing Antarctica. Or using the "same" fact to "prove" or "disprove" GW. You're looking for a simple verification or falsification of a complex theory, and there never will be one. That isn't how science works.