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An anonymous reader quotes a report from CNN: An Antarctic glacier shrunk by nearly 50% in just two months, the fastest retreat recorded in modern history, according to a new study — and the way it retreated could have big implications for global sea level rise. The Hektoria Glacier, roughly the size of Philadelphia, is on the Antarctic Peninsula, a spindly chain of mountains sticking off the continent like a thumb pointing toward South America. It is one of the fastest…
