so ice cap and sea ice melt *does impact sea level....<br><br>from:<br><br><a href="http://nsidc.org/news/press/20050801_floatingice.html">http://nsidc.org/news/press/20050801_floatingice.html</a><br><h2> Melting of Floating Ice Will Raise Sea Level</h2>
<p>When ice on land slides into the ocean, it displaces ocean water and causes
sea level to rise. People believe that when this floating ice melts, water
level doesn’t rise an additional amount because the freshwater ice
displaces the same volume of water as it would contribute once it melts.
Similarly, people also think that when ocean water freezes to form sea ice
and then melts, the water is merely going through a change of state, so it
won’t affect sea level. However, in a visit to NSIDC in May, Dr. Peter
Noerdlinger, a professor at St. Mary’s University in Nova Scotia, Canada,
suggested otherwise.</p>
<p>In a paper titled "The Melting of Floating Ice will Raise the Ocean
Level" submitted to Geophysical Journal International, Noerdlinger demonstrates
that <span style="color:rgb(204,0,0)">melt water from sea ice and floating ice shelves could add 2.6% more
water to the ocean than the water displaced by the ice</span>, or the equivalent
of approximately 4 centimeters (1.57 inches) of sea-level rise. </p>
<p>The common misconception that floating ice won’t increase sea level
when it melts occurs because the difference in density between fresh water
and salt water is not taken into consideration. Archimedes’ Principle
states that an object immersed in a fluid is buoyed up by a force equal to
the weight of the fluid it displaces. However, Noerdlinger notes that because
freshwater is not as dense as saltwater, freshwater actually has greater
volume than an equivalent weight of saltwater. Thus, when freshwater ice
melts in the ocean, it contributes a greater volume of melt water than it
originally displaced.</p>-AA<br><br clear="all"><font><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)"><font><i style="color:rgb(102,0,0)">design for purposeful living</i></font></font><br style="color:rgb(102,0,0)">
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