因全球气候变暖，估计到2100年夏天北极将成为无冰的世界。
Due to global warming estimated that by the summer of 2100, the Arctic will be ice-free world.
当地商店里的供应品必须通过世界上最贵的航空网路之一空运到努勒维特，或者在夏季中少数几个无冰周里通过补给船来购买。
Provisions available in local shops have to be flown into Nunavut on one of the most costly air networks in the world, or brought by supply ship during the few ice-free weeks of summer.
直到最近，许多科学家认为北极到本世纪末的时候可能会在夏季完全变成无冰世界。
Until recently, many scientists thought it might take until the end of the century for the North Pole to become completely ice-free during the summer.
第五大的世界的大陆，南极洲包括5,500,000平方英里(14,245,000平方公里)的积雪超过冰川和冰盖和少于5%是无冰的地方。
Fifth-largest of the world's continents, Antarctica comprises 5,500,000 square miles (14,245,000 square kilometers) of snow-topped glaciers and ice sheets with less than 5 percent ice-free.
第五大的世界的大陆，南极洲包括5,500,000平方英里(14,245,000平方公里)的积雪超过冰川和冰盖和少于5%是无冰的地方。
Fifth-largest of the world's continents, Antarctica comprises 5,500,000 square miles (14,245,000 square kilometers) of snow-topped glaciers and ice sheets with less than 5 percent ice-free.
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