The latest findings show that the rate of ice loss in Greenland has increased almost fivefold since the mid-1990s, while Antarctica overall has been losing relatively small amounts of ice at a more or less constant rate.
"Antarctica is so cold that even if warming occurs it won't melt" at the rate seen in Greenland, said Ian Joughin, a glaciologist at the University of Washington in Seattle and a co-author of the new paper.
One tricky question is whether the overall accelerated melting of the ice sheets can be linked to man-made climate change.
The shrinkage of the permanent ice sheets can't entirely be explained by any of the decadeslong or centurylong natural shifts in climate cycles, according to Prof. Shepherd.
Scientists note that current climate-change models predict that some parts of the Antarctic ice sheet will grow while other parts will shrink, and that parts of the Greenland ice also will melt. Observations have borne out these projections so far.
http://online.wsj.com/article/SB10001424127887323751104578149073844418936.html?mod=e2tw
The politicization of science makes it impossible not to be suspicious of science. Is there an alternative.
"Antarctica is so cold that even if warming occurs it won't melt" at the rate seen in Greenland, said Ian Joughin, a glaciologist at the University of Washington in Seattle and a co-author of the new paper.
One tricky question is whether the overall accelerated melting of the ice sheets can be linked to man-made climate change.
The shrinkage of the permanent ice sheets can't entirely be explained by any of the decadeslong or centurylong natural shifts in climate cycles, according to Prof. Shepherd.
Scientists note that current climate-change models predict that some parts of the Antarctic ice sheet will grow while other parts will shrink, and that parts of the Greenland ice also will melt. Observations have borne out these projections so far.
http://online.wsj.com/article/SB10001424127887323751104578149073844418936.html?mod=e2tw
The politicization of science makes it impossible not to be suspicious of science. Is there an alternative.
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