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39 40</head> 41<body bgcolor="#ffffff" link="#3333CC" vlink="#669999" onload="MM_preloadImages('images/research_nav1_over.gif','#936113871950');MM_preloadImages('images/research_nav2_over.gif','#936113894533');MM_preloadImages('images/research_nav3_over.gif','#936113914150')"> 42<a name="top"></a> 43<table border="0" cellpadding="0" cellspacing="0"> 44<tr><!-- row 01 --> 45 <td rowspan="1" colspan="3"><a href="/"><img name="Nintro_01_01" src="../images/intro_01_01_2.gif" width="619" height="88" border="0" alt="Secrets of the Ice - An Antarctic Expedition"></a></td> 46</tr> 47<tr><!-- row 02 --> 48 <td rowspan="1" colspan="3"><a href="../explore/index.html" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('document.explore','document.explore','../images/nav_explore_over.gif','#934979132683')"><img src="../images/nav_explore.gif" width="112" height="17" alt="Explore Antarctica" name="explore" border="0"></a><a href="../icecore/index.html"><img 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alt="Learning Resources" name="learning" border="0"></a></td> 49</tr> 50<tr><!-- row 03 --> 51 <td rowspan="1" colspan="1" valign="TOP" width="182"><p><img src="../images/trans.gif" width="180" height="2"> 52 <p> 53 <table width="181" border="0" cellpadding="7" cellspacing="0"> 54 <tr valign="middle"> 55 <td bgcolor="#99CCCC"> 56 <p><img src="../icecore/images/sub_head_ice_core.gif" width="181" height="56" alt="Ice Core Research"></p> 57 <p><a href="../icecore/formation.html" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('document.wilderness','document.wilderness','../explore/images/explore_nav1_over.gif','#936112019366');MM_swapImage('document.formation','document.formation','images/research_nav1_over.gif','#936113871950')"><img src="../icecore/images/research_nav1.gif" width="164" height="26" align="TOP" name="formation" border="0" alt="Ice Formation and Flow"></a></p> 58 <p><a href="../icecore/cores.html" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('document.cores','document.cores','images/research_nav2_over.gif','#936113894533')"><img src="../icecore/images/research_nav2.gif" width="164" height="26" align="TOP" border="0" name="cores" alt="Drilling Ice Cores"></a></p> 59 <p><a href="../icecore/warming.html" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('document.past','document.past','../explore/images/explore_nav3_over.gif','#936112398383');MM_swapImage('document.warming','document.warming','images/research_nav3_over.gif','#936113914150')"><img src="../icecore/images/research_nav3.gif" width="164" height="26" align="TOP" border="0" name="warming" alt="Global Warming and Cooling"></a></p> 60 </td> 61 </tr> 62 <tr> 63 <td height="8"></td> 64 </tr> 65 <tr bgcolor="#99CCFF"> 66 <td><font face="Arial, Helvetica, sans-serif" size="2">Make your own estimates of sea level rise in this 67 <a href="https://www.waybackmachinedownloader.com/en/">activity</a>!</font></td> 68 </tr> 69 </table> 70 <p> </p> 71 </td> 72 <td rowspan="1" colspan="1" width="36" valign="TOP"> <img name="Nintro_03_02" src="../images/vert_bar.gif" width="9" height="654" border="0" vspace="16" hspace="0"></td> 73 <td rowspan="1" colspan="1" width="410" valign="TOP"><font face="Arial, Helvetica, sans-serif" size="2"> 74<p> </p> 75 <table border="0" cellspacing="0" cellpadding="0"> 76 <tr> 77 <td><img src="../icecore/images/research_index_main.jpg" width="193" height="286"></td> 78 <td><img src="../icecore/images/research_index_opening.gif" width="227" height="286"></td> 79 </tr> 80 </table> 81 <table border="0" cellspacing="10" cellpadding="0" width="230" align="right"> 82 <tr> 83 <td> 84 <center><a href="../icecore/images/AntChange2.mov" target="_blank"><img src="../icecore/images/research_quicktime.jpg" alt="NASA Quicktime" width="189" height="143" border="1" align="bottom"><p><font size="-1"><i>Watch NASA's computer model.</i></font></p></a> 85 <br> 86 <font size="1">(290 kb Quicktime Movie)</font> 87 </center> 88 </td> 89 </tr> 90 </table> 91 <p> 92 The Antarctic ice cap forms the largest body of fresh water in the 93world. Ninety percent of our fresh water supply is locked up in 7.25 94million cubic miles (30 million cubic kilometers) of glacial ice on 95the southern continent. If all of this ice were to melt, the height 96of the earth's oceans--sea level--would rise 160-200 feet (50-60 m). 97Islands and coastal cities around the world, including Boston, would 98be completely 99submerged. 100 <p>Scientists at <a href="http://www.gsfc.nasa.gov/" target="_blank">NASA</a> have 101generated a computer model depicting changes in the Antarctic ice 102sheet since the peak of the last ice age nearly 20,000 years ago. The 103West Antarctic ice sheet has lost nearly two-thirds of its mass 104during this period, a volume sufficient to raise sea level 33 feet 105(10 m).</p> 106 <p>Glaciologists study the <a href="../icecore/formation.html">behavior 107of the ice sheet</a> to understand more about how fast it grows and 108moves so they might better predict how the ice sheet may respond to 109climate changes in the future.</p> 110 <p> </p> 111 <p align="CENTER"></p> 112 <p> </p> 113 <p> </p> 114 <p> </p> 115 <!-- #BeginLibraryItem "/Library/footer.lbi" --><p> 116 <p> 117 <img src="../images/horiz_bar.gif" width="400" height="9"> 118<p align="CENTER"><a href="../search/search.html">search</a> 119<!-- #EndLibraryItem --><p> </p> 120 <p> 121 </font></td> 122</tr> 123</table>
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