An ice island with an area of 100 square miles has broken off from one of Greenland's two main glaciers in what scientists say is the biggest such event in the Arctic in nearly 50 years.
一块面积达到100平方英里的浮冰岛已经从格陵兰两大冰川之一崩离，用科学家的话来说，这块浮冰岛的崩落是近50年北极同类事件中最大的一个。
Proof of warming is widespread across Russia. Glaciers and Arctic sea ice have dwindled, and as many as 385, 000 square miles of Siberian tundra are thawing.
变暖的证据遍布俄罗斯，冰川和北冰洋的冰雪面积开始缩减，面积多达三十八万五千平方英里的西伯利亚冻土带正在融化。
Arctic temperatures have increased at almost twice the global average rate in the last 100 years; 70,000 square kilometres of sea ice (an area about the size of Ireland) is disappearing annually.
北极的温度上升率在过去的100年中比全球温度的上升率高出了一倍，每年都有7万平方公里的冰海消失，而这一面积相当于整个爱尔兰的面积。
Arctic temperatures have increased at almost twice the global average rate in the last 100 years; 70, 000 square kilometres of sea ice (an area about the size of Ireland) is disappearing annually.
北极的温度上升率在过去的100年中比全球温度的上升率高出了一倍，每年都有7万平方公里的冰海消失，而这一面积相当于整个爱尔兰的面积。
In March 1979, the first year for which satellite records are available, the sea ice in the Arctic Ocean covered 16.4m square kilometres (6.4m square miles).
1979年3月，卫星摄影技术发明之初，北冰洋海域覆盖着1640万平方公里(640万平方英里)的冰层。
ON SEPTEMBER 9th, at the height of its summertime shrinkage, ice covered 4.33m square km, or 1.67m square miles, of the Arctic Ocean, according to America's National Snow and Ice Data Centre (NSIDC).
据美国国家冰雪中心（NSIDC）监测，今年的9月9日，处于夏季收缩极值的北极海冰仅仅覆盖了433万平方公里，或相当于167万平方英里的北冰洋洋面。
ON SEPTEMBER 9th, at the height of its summertime shrinkage, ice covered 4.33m square km, or 1.67m square miles, of the Arctic Ocean, according to America's National Snow and Ice Data Centre (NSIDC).
据美国国家冰雪中心（NSIDC）监测，今年的9月9日，处于夏季收缩极值的北极海冰仅仅覆盖了433万平方公里，或相当于167万平方英里的北冰洋洋面。
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