May 14, 2009 | 40 A new estimate puts maximum global sea level
rise from the collapse of the West Antarctic Ice Sheet at 10.5
feet (3.2 meters)—not the 16 feet (five meters) or more
predicted in the past. The latest research indicates that this
massive ice sheet is unlikely to disappear completely, limiting
the damage as it melts. Glaciologist Jonathan Bamber of the
University of Bristol in England and his colleagues modeled the
collapse of the ice sheet based on the relative likelihood of a
given section vanishing completely. Their work suggests only
those parts of the ice sheet that are grounded below sea level
or sloping downwards would collapse. Those parts of the sheet
grounded above sea level or on bedrock that slopes upwards would
remain in place. Deadline: Jul 25 2013 This challenge provides
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