The disintegration of the huge Larsen B ice shelf in Antarctica was an unprecedented event in the past 10,000 years of geological history, a study has found. Research by scientists from Hamilton College in New York, based on the scrutiny of six ice cores from the vicinity of the ice shelf, found that a collapse of this size had not happened during the period since the end of the last Ice Age. The piece of ice which sheered away from Larsen B into the sea in 2002 was roughly the size of Luxembourg. The study, published in the journal Nature,...