As Herman Engleheart, a co-author from the California Institute of Technology says, "the West Antarctic icesheet disappear once and can disappear again."
正如加州理工学院的赫尔曼·恩格尔哈特所说，“南极西部冰盖消失过一次，也可能再次消失。”
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Now, new evidence reveals that all or most of the Antarctic icesheet collapsed at least once during the past 1.3 million years.