北冰洋的鲸类仍然遭到猎杀。
冰覆盖了北冰洋的大部分地区。
叶尼塞河发源于蒙古，流经俄罗斯，汇入北冰洋的喀拉海。全长3445英里。
The Yenisei River starts in Mongolia and flows through Russia to the Kara Sea in the Arctic Ocean. It's 3,445 miles long.
一只海豹宝宝趴在北冰洋的冰块上。
北冰洋的海冰范围会缩水百分之十五到二十五。
A 15 to 25 percent decrease in the extent of Arctic Ocean sea ice.
几分钟后，这片烟雾将会掉落在北冰洋的海岸。
In some other minutes the smoke will fall onto the coast of the Arctic ocean.
图中另一块明亮的区域则是北冰洋的极地冰冠。
The other bright region in the image is the polar ice cap over the Arctic Ocean.
北冰洋的冰，融化速度比气候模型预测的快很多。
Arctic sea ice is melting far faster than climate models predict.
几十年来，大家都知道北冰洋的冰正在逐渐消失。
That Arctic sea ice is disappearing has been known for decades.
如果没有这个过程，北冰洋的水温会比现在还要高。
Without that process, the Arctic sea could warm up even more than it already has done.
美国科学家称，覆盖北冰洋的冰面去年冬天继续缩减。
American scientists say ice covering the Arctic Sea continued to shrink last winter.
另外一条是拉布拉多海流——这是来自北冰洋的冷水流。
Another is the Labrador Current - cold water coming down from the Arctic.
北冰洋的冰也开始消失，减少了北极熊捕捉海豹的领地。
Arctic sea ice is also disappearing, reducing the territory of the polar bear's seal prey.
因为北冰洋的大部分地带处于冰冻状态，航海家们失败了。
They failed, because so much of the Arctic ocean was frozen.
如果他们真的相信，也许他们也会愿意购买我在北冰洋的小岛。
Should they believe this, perhaps they'd want to buy my island in the Arctic.
他们说，这会严重威胁到这些海象，甚至是北冰洋的整个生态系统。
They say this would threaten walruses and the whole ecosystem in the Arctic Ocean.
研究人员研究了东西伯利亚北极大陆架，西伯利亚以北的北冰洋的一段。
The researchers studied the East Siberian Arctic Shelf, a section of the Arctic Ocean just north of Siberia.
融化已经在影响着当地动物，像北极熊。北冰洋的融化也能影响地球的气候。
The melting has already threatened native animals like the polar bear. Arctic melting could also affect Earth's climate.
每年这时，北冰洋的刺骨寒风开始席卷蒙古大草原，迎接着漫长而寒冷的冬季。
This is the time of year when blasts of Arctic air start sweeping across Mongolia's steppe, ushering in the long, hard winter.
如果俄罗斯想扩大其在北冰洋的领土，那么它就必须证明其大陆架是西伯利亚大陆的延伸。
Russia will have to prove that its shelf continues the Siberian continental platform in order to enlarge its territory in the Arctic Ocean.
俄国人首先在北冰洋的海底插上了自己的国旗，接着又信誓旦旦地宣布自己将重返地中海。
First the Russians planted a flag on the bottom of the Arctic. Then they promised to return to the Mediterranean.
例如北冰洋的冰块十年来已减少了4%，格陵兰岛和南极洲的冰盖也在大量减少。
Arctic sea ice, for example, is shrinking by around 4% a decade, and the Greenland and Antarctic ice sheets are losing mass.
自从新世纪开始，通过白令海峡进入北冰洋的温暖海水，已经开始限制海冰的范围。
Warm waters passing through the strait into the Arctic Ocean might have helped reduce sea ice extent since the turn of the twenty-first century.
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。
The trend also helped to melt Arctic sea ice cover to a record low for December last month, the WMO said in a statement.
从北冰洋的极地熊到热带海域的珊瑚礁，气候变化已经被证明对全球范围内的生物都产生了影响。
Climate change has already had documented effects on species living across the globe, from polar bears in the Arctic to coral reefs in the tropical seas.
北冰洋的冰是很重要的。因为它能反射太阳光并能保持海水寒冷。冰还有使空气凉爽的功能。
Arctic sea ice is important because it throws sunlight back into space, keeping the sea cold. The ice also cools the air.
北冰洋的冰层由结冰的海水构成，这些冰层在每年的冬天急速冻结，又在每年的夏天迅速消融。
Layers of frozen sea water, known as sea ice, cap the Arctic Ocean. The ice grows dramatically each winter, and melts just as dramatically each summer.
其他到达北冰洋的探险家也在寻求传说中跨越极地冰原从欧洲到亚洲直接运输路径的西北通道。
Other explorers to the Arctic Ocean have sought the fabled Northwest Passage direct shipping route from Europe to Asia across the polar ice.
穿过解冻的北冰洋的新航道将从鹿特丹经由苏伊士运河至横滨的航程消减了4700英里，节省了42%。
A new seaway through an unfrozen Arctic Ocean would cut the journey from Rotterdam to Yokohama via the Suez canal by 4,700 miles, a saving of 42%.
穿过解冻的北冰洋的新航道将从鹿特丹经由苏伊士运河至横滨的航程消减了4700英里，节省了42%。
A new seaway through an unfrozen Arctic Ocean would cut the journey from Rotterdam to Yokohama via the Suez canal by 4,700 miles, a saving of 42%.
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