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To: Southack
Ice contracts when it melts. How likely is that fact going to contribute to RAISING our sea levels?!

Archimedes principal requires that the volume of fresh water displaced by ice exactly equal the volume of the melted ice, so by that standard, you are correct. The ice resting on the earth's hard surface, even below sea level, distorts the earth's elastic shell, which floats on a sea of liquid rock (magma). As this ice moves into the sea, as ice or water, the land underneath will spring up, slightly and land else where will sink very slightly, the entire configuration seeking the lowest total potential energy.

Floating icepack near the shores forms a stopper which prevents the ice on the antartic continent and northern land masses from flowing into the oceans and buoys up the other continents.

That's how losing the antartic ice cap could "raise water levels".

That notwithstanding, globaling warming and ice shelf scares in the popular press are, IMHO, hogwash.

18 posted on 03/30/2002 5:13:51 AM PST by Lonesome in Massachussets
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To: Lonesome in Massachussets
globaling warming and ice shelf scares in the popular press

Of course they are scared. All the big liberal controlled cities (eg. Washington, NYC and Boston) would be among the first submerged. Hoo Yah!

19 posted on 03/30/2002 5:46:44 AM PST by reg45
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To: Lonesome in Massachussets
An ice cube floating in a glass of water does not raise the level of water in the glass by the volume of the ice cube. Rather, it adds volume according to the volume of the ice above the water, less the contraction factor when the water changes phase from solid to liquid, less ablation of the ice, less evaporation of the ice as it melts.
22 posted on 03/30/2002 6:56:37 AM PST by Graewoulf
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