Photograph: Brenda Konar/UniversityofAlaskaFairbanks/Census of Marine Life
照片:Brenda Konar/阿拉斯加大学费尔班克斯校区/海洋生物普查计划
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Regine Hock, a glacial geophysicist at the UniversityofAlaskaFairbanks, told the National Geographic that the breakup of ice shelves is "a normal process that happens all the time".