The Arctic sea ice holds a central position in the Earth's climate system and it's deteriorating faster than expected.
北极海冰在地球气候系统中占据中心位置，并且它恶化的速度比预期的更快。
Arctic sea ice usually melts in spring and summer, then grows in winter.
北极的海冰通常在春天和夏天融化，然后在冬天形成。
Arctic sea ice is melting far faster than climate models predict.
北冰洋的冰，融化速度比气候模型预测的快很多。
As Arctic sea ice melts, the darker ocean absorbs more sunlight and speeds melting.
覆盖在北极海面上的冰雪融化后，颜色更深的海水将吸收更多的阳光，从而加速了融化进程。
The Arctic Sea was located in the Atlantic, 300 miles off the Cape Verde islands.
北极海位于大西洋中，距佛得角海岛300英里。
Without that process, the Arctic sea could warm up even more than it already has done.
如果没有这个过程，北冰洋的水温会比现在还要高。
Arctic sea ice is also disappearing, reducing the territory of the polar bear's seal prey.
北冰洋的冰也开始消失，减少了北极熊捕捉海豹的领地。
If there were such a thing, now would not be a good time to buy shares in Arctic sea ice.
假设北极冰川真出现了这样的情况，那么现在一定不是个买股票的好时机。
Arctic sea-ice cover reached its lowest ever recorded average level for the month of June.
六月，北极海冰的覆盖面积达到历史平均记录的最低点。
Data from submarines suggest that Arctic sea ice has thinned by 40 percent in the past 30 years.
从潜艇所获得的数据表明，北极海的冰层在过去30年里变薄了40%。
And retreating Arctic sea ice provides even more visible data to support conclusions of warming.
而北冰洋冰块的后退为变暖的结论提供了更明显的数据支持。
There's too little data to know—comprehensive records on Arctic sea ice go back only to 1979.
人们获知的数据太少：有关北极冰川的综合记录只能追溯到1979年。
Eight armed "pirates" seized the Arctic Sea in the late evening of 24 July, off the coast of Sweden.
八名武装“海盗”于7月24日晚间在瑞典海岸外夺取了“北冰洋”号。
They show Arctic sea ice extent for the September 2009 minimum (left) and March 2010 maximum (right).
它显示的是北极海洋结冰程度在2009年9月的最低值(左)和2010年3月的最高值(右)。
Bartenev, his lawyer says, paints a completely different picture of events surrounding the Arctic Sea.
律师说，巴尔捷涅夫对“北冰洋”号事件的描述截然不同。
The pair of images above shows Arctic sea ice concentrations for September 2010 (left) and March 2011.
上方的这组图片显示了北极海冰范围在2010年9月(左)和2011年3月的对比。
The Arctic sea ice extent averaged for July was the second lowest in the satellite record, after 2007.
根据来自国家冰雪数据中心(NSIDC)的最新数字，7月份平均北极海冰面积为2007年后卫星纪录中第2个最低点。
Arctic sea ice, for instance, is clearly shrinking faster than the climate-change computers predicted.
例如北极冰川融化的速度之快就超过了气候变化的电脑预测速度。
Measures of Arctic sea ice this year show its area is the second lowest on record, and its volume is the lowest.
对北极海冰的检测表明，今年海冰面积下降到记录以来倒数第二，其体积则已经减少到有记录以来最小。
But in 2008, Arctic sea ice extent was the second-lowest on record, with losses particularly acute in the Beaufort sea.
但是2008年是北冰洋海冰面积有记录以来倒数第二小的年头，波弗特海地区海冰面积更是锐减得厉害。
The trend also helped to melt Arctic sea ice cover to a record low for December last month, the WMO said in a statement.
世界气象组织称，这个趋势使北冰洋的冰雪覆盖面于上个月十二月份达到历史最低。
This pair of images shows the latest updates to the the Earth Observatory’s World of Change: Arctic Sea Ice feature.
这一组图片来自最新地球观察杂志上的世界变化：北极海洋结冰特征。
He also argued that much remains unknown about the interaction between Arctic sea ice, sea level, and temperature rise.
他还认为，有关北极海冰、海平面图和气温上升之间的相互作用还存在许多未知数。
The animals were forced to swim to shore after the Arctic Sea ice they usually live on disappeared from the Chukchi Sea.
楚科奇海面上它们赖以生存的北极冰面消失后，这些动物无奈中只能上岸。
The animals were forced to swim to shore after the Arctic Sea ice they usually live on disappeared from the Chukchi Sea.
楚科奇海面上它们赖以生存的北极冰面消失后，这些动物无奈中只能上岸。
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