pokkets says: Much of the ice that has built up over the land at the poles has been frozen fast to the land. As the climate warms, and sea level rises, a sheet of water can form between the ice and the land. Then, due to the buildup, and weight of the ice on the water, an ice sheet can slip into the ocean, creating turbulence, greater ocean volume, and an acceleration of the melt. Will we soon have a planet where there is no ice? From here: What awaits Pachauri will certainly be eye-opening. The amount of sea ice around Antarctica has recently set several all-time high records. The greatest extent of sea ice observed since satellite observations began in 1979 was observed during the Southern Hemisphere winter of 2007 and the greatest sea ice anomaly (departure from average), occurred during the summer of 2007-08, breaking the old record by more than an additional 500,000 square kilometers. While sea ice is not the same as the land ice that Rignot was studying, it is, nevertheless, a major part of the Antarctic cryos... |
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