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John Thiessen
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To understand what 300 km^3 means for sea level rise: The area of the oceans are 335258000 km^2 (from google or whatnot). For each km^3 that melts, the oceans rise 1/335258000 km. To convert to meters, multiply by 1000. That still leaves a very small number. To make that number more comparable, multiply by 1000 again: 0.00298. In other words, for every 1000 km^3 of land ice that melts, the sea level rises .00298 meters or about 3 millimeters. So the current rate of sea level increase due to Greenland melt (approx. 300 km^3) is about 1 mm per year. Does this sound right?
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Jan 10, 2011