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STEM 新闻: 消失的北极夏季海冰

  • Writer: Rachel
    Rachel
  • Aug 18, 2020
  • 1 min read

Arctic ice melting

到2035年,北冰洋在夏季可能不再有海冰。北极地区全球变暖的速度是地球上其他地方的两倍。自工业化前时期以来,北极的平均温度已经上升了3.5至5.5华氏度(2至3摄氏度),而地球其他地方的平均温度为1.8华氏度(1摄氏度)。北极地区的温度上升速度也在加快,在过去十年,以1.35华氏度(0.75摄氏度)的温度上升。今年七月,北冰洋的海冰数量是1979年有记录以来最少的一年。只有280万平方英里的海冰覆盖了北冰洋,而在1980年代的同一时期,平均有380万平方英里。此外,在北极地区出现了前所未有的热浪。为了预测北极地区何时不再有夏季海冰,研究人员正在基于最后冰期期间的情况设计模型,当时北极地区的平均温度上升了7至9华氏度(4至5摄氏度)。这些预测表明,北极的海冰将在2035年之前消失,任何行为也无法扭转北极夏季海冰即将消失的事实。


引自:

Arctic Summer Sea Ice Could Disappear As Early As 2035, Alejandra Borunda, National Geographic 图片来自: Rowan Romeyn, Alamy Stock Photo


Translated into Mandarin by Han Yuyi

 
 
 

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