[DOC] [TLE] West Antarctic Ice Sheet - Wikipedia [PAR] The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice 
sheet that covers West (or Lesser) Antarctica, the portion of Antarctica on the side 
of the Transantarctic Mountains which lies in the Western Hemisphere. The WAIS 
is classified as a marine-based ice sheet, meaning that its bed lies ... Many of 
these sediments were deposited before the ice sheet occupied the... [DOC] [TLE] What is Happening to the West Antarctic Ice Sheet? | West Antarctic ... [PAR] For many of the last thirty years, the West Antarctic ice sheet has been in the ... 
Do its fringing ice shelves or its marine base make it inherently unstable? ... 
Figure 1. West Antarctica is a tightly coupled, dynamic environment. The size of 
the ice ... These features indicate grounded ice streams deformed the basal till as 
the ice... [DOC] [TLE] Ice Sheets, Rising Seas and Global Warming - American Institute of ... [PAR] (1980s-2004) - Greenland and Pine Island - Storm Surges and the Future .... A 
West Antarctic Ice Sheet collapse could be very rapid, Mercer said. ... Mercer 
published his worries in an obscure conference report, and although he wrote ..... 
One meter of sea-level rise might not sound like much, but in many areas it would
... [DOC] [TLE] Scientists declare an 'urgent' mission  study West Antarctica, and fast [PAR] Sep 29, 2015 ... Scientists declare an 'urgent' mission  study West Antarctica, and fast ... The 
glacier is not one that most Americans will have even heard of  Thwaites ... be 
activated in the near future, with the possible exception of Thwaites, Richard 
Alley, ... It's not just U.S. scientific authorities worrying about Thwaites. [DOC] [TLE] The melting of Antarctica was already really bad. It just got worse ... [PAR] Mar 16, 2015 ... The idea of warm ocean water eroding the ice in West Antarctica, what we're 
finding is ... In its alignment with the land and the sea, the Totten Glacier is similar 
to the West ... One of these canyons is three miles wide, in a region that was 
previously ... retreat underway in the West Antarctic Ice Sheet (WAIS). [DOC] [TLE] Collapse Of Antarctic Ice Sheet Would Likely Put Washington, D.C. ... [PAR] Feb 6, 2009 ... Geophysicists have shown that should the West Antarctic Ice Sheet collapse ... as 
many scientists are concerned it will -- it is the coastlines of North ... In illustration 
A, the WAIS can be seen as a largely marine-based ice sheet - that is, its ... (i.e., 
the locations these surfaces had on the top frame, before WAIS... [DOC] [TLE] Future of WAIS - Antarctic and Southern Ocean Coalition [PAR] 1. The Future of the West Antarctic Ice. Sheet: Observed and Predicted .... The 
period of time over which this rise would occur (or its rate) is uncertain. 2. ... and 
policy makers are concerned with the ice sheets in Antarctica and Greenland 
because ... due to the large potential impact of WAIS on global sea level, many 
experts... [DOC] [TLE] West Antarctic Ice sheet [PAR] The West Antarctic Ice Sheet(WAIS) is a unique marine ice sheet, anchored to ... 
Marine ice sheets are important because their existence and future ... of rapid 
deglaciation (melting), and many scientists are quite concerned about this 
possibility. ... These ice streams, as they are called, are up to 100 kilometres wide 
and... [DOC] [TLE] West Antarctic Ice Sheet collapse is under way | UW Today [PAR] May 12, 2014 ... The West Antarctic Ice Sheet, which holds enough water to raise global ... 
Scientists have been warning of its collapse, based on theories, but with few ... 
the stability of marine ice sheets, and many scientists suspected that this kind of 
... faster or slower melt rates depending on the amount of future warming. [DOC] [TLE] The "Unstable" West Antarctic Ice Sheet: A Primer | NASA [PAR] May 12, 2014 ... MISSIONSCurrent, future, past missions & launch dates .... Mercer based his 
statement on geologic

Question: The WAIS is the West Antarctic one of these; many are worried about its future
Answer: Ice Sheet