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<DIV><FONT size=4>My understanding is the reason water ice has a higher volume
than water liquid is that it entraps air in the crystal structure. My
hunch is that if you subtracted the volume of gas air within the ice structure,
the volume of the water would be less than the liquid equivalent by
weight. </FONT></DIV>
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<DIV><FONT size=4>Eli </FONT></DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=steve@tjiang.org
href="mailto:steve@tjiang.org">Steven Tjiang</A> </DIV>
<DIV><B>Sent:</B> Thursday, August 30, 2012 11:55 AM</DIV>
<DIV><B>To:</B> <A title=greenbuilding@lists.bioenergylists.org
href="mailto:greenbuilding@lists.bioenergylists.org">Green Building</A> </DIV>
<DIV><B>Subject:</B> Re: [Greenbuilding] Climate breakdown is here. (polar ice
melt)</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">I
don't think it's the ice in the water that will raise sea levels; It's all the
ice that isn't in the water (i.e. Green land and Antarctica). Also if the
sea ice is melting it also likely the landlocked ice is also melting and thus
adding more water to the "tub".
<DIV><BR clear=all>---- Steve (KZ6LSD)<BR><BR><BR>
<DIV class=gmail_quote>On Wed, Aug 29, 2012 at 9:47 AM, Joe Killian <SPAN
dir=ltr><<A href="mailto:kaa-ajk@sonic.net"
target=_blank>kaa-ajk@sonic.net</A>></SPAN> wrote:<BR>
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<DIV> Classic trick high school question:<BR> Fill a glass with
ice, add water to the brim (top of ice will float higher). Let it
melt. Does it overflow?<BR> Answer: No. The weight
(mass) of water displaced by the floating ice is the same as the weight
of all the ice, which is also the same volume of the displaced water once
melted.<BR> So melting sea ice doesn't raise (or lower) sea
level.<BR> The fresh water added to the ocean, however, may well
accelerate the feared effect of the melting Greenland ice adding fresh water
to the North Atlantic and potentially (inevitably?) changing the course of the
Gulf Stream. Whereupon northern Europe's climate becomes more like
Siberia's climate.<BR> Hang on....<BR>Joe<BR><BR><BR><BR>On
8/29/2012 8:32 AM, Alan Abrams wrote:<BR></DIV>
<BLOCKQUOTE type="cite">if salt water is more dense than fresh--then when
the ice pack melts, does this not result in a rise in sea level? No,
wait, ice contracts when it melts. But most of a floating mass of ice
is submerged, and the volume of the exposed mass is equal to the increase in
volume as a result of freezing...<BR><BR>...ouch. my head
hurts.<BR><BR>-AA<BR><BR clear=all><SPAN style="COLOR: rgb(102,0,0)">Alan
Abrams</SPAN><B style="COLOR: rgb(102,0,0)"><BR>Abrams Design Build
LLC</B><BR style="COLOR: rgb(102,0,0)"><I style="COLOR: rgb(102,0,0)">design
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