小编:A study suggests that the Arctic quot;may beessentially ice-free during summer within 15 years.quot; 一项研究显示,北极在15年内可能会在夏季基本无冰。 The study used statistical models to predict thefuture amount of Ar
A study suggests that the Arctic quot;may beessentially ice-free during summer within 15 years.quot;

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