北极比南极温暖，其周围的空气循环更为畅通。
The north pole is warmer than the south and the circulation of air around it is less well contained.
在北极和南极，只有两个季节。
北极燕鸥是真正的长途迁徙者，它们在北欧沿海湿地筑巢，但会向南飞行数千英里，在南极洲度过欧洲的冬季。
Arctic terns, being true long-distance migrants, they nest in coastal wetlands of northern Europe but fly south for thousands of miles to spend the European winters in Antarctica.
北极到了冬天时，我们就飞往南极。
这位海洋学家告诉与会代表，高纬度地区的海洋酸化问题更加严重，北极和南极周围比赤道附近糟糕得多。
The oceanographer told delegates that the problem of ocean acidification was worse in high latitudes, in the Arctic and around Antarctica, than it was nearer the equator.
与此同时，挪威探险家罗阿尔德.阿蒙森梦想的首次到达北极的桂冠被弗雷德里克.库克和罗伯特.佩里夺走，他暗自将目光投向了南极。
Meanwhile, Norwegian explorer Roald Amundsen, whose plan to reach the North Pole first had been thwarted by both Frederik Cook and Robert Peary, had secretly turned his sights on the South Pole.
另外一个观点认为，地球会上下颠倒，北极会变成南极。
Another idea is that the earth will turn upside down.So the North Pole will become the South Pole.
另外一个观点认为，地球会上下颠倒，北极会变成南极。
Another idea is that the earth will turn upside down. So the North Pole will become the South Pole.
加德勒补充到，“它们主要来自于加拿大北极群岛、美国阿拉斯加、南美洲巴塔哥尼亚和喜马拉雅山脉的冰川，以及格陵兰和南极冰盖附近的一些小规模的冰川。”
Most of the ice loss is coming from the Canadian Arctic Archipelago, Alaska, Patagonia, the Himalayas, and the smaller ice masses surrounding the main Greenland and Antarctic ice sheets.
原先以为所有这些水都集中在月球南极附近，但3月份，印度月船1号绕月卫星的雷达设备也在月球北极发现数以百万吨的水。
All that water was near the moon's South Pole, but in March a radar instrument on India's Chandrayaan-I orbiter found millions of tons of water at the North pole, too.
阿特拉斯是两者中较平整的一个，从南极点到北极点的直径只有18公里，但是它的赤道周长却有40公里。
Atlas, the flatter of the two, has a diameter of only 18 kilometres from pole to pole, but is almost 40 kilometres across its waist.
他又说到：“我是个专业的摄影师，因此我有许多冰川潜水的经验，比如像南极洲、北极以及大海和各种山等地方的经验。”
He added: 'I'm a professional photographer so I have experience in ice diving in places like Antarctica, the arctic, White Sea and dozens of mountain lakes.
那些对北极地区爱其美景而非爱其财富的人很羡慕南极洲，因为南极洲在一项旨在防止冷战南扩的条约体制下被谨慎地加以分配。
People who love the arctic for its beauty, not its riches, look enviously at Antarctica, which was carefully parcelled out by a treaty regime designed to stop the cold war spreading south.
南极洲和北极格林兰岛周围不断升温的海水，在未来几个世纪将导致海平面上升，这点已达成共识。
There is strong consensus that warming waters around Antarctica, and Greenland in the arctic, will result in centuries of rising seas.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past —sometimes the field completely flips, with the north and the south poles swapping places.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past - sometimes the field completely flips, with the north and the south poles swapping places.
地球绕一个贯穿南极点和北极点的假想轴旋转，这个假想轴称为地轴。同时也绕太阳公转。
The Earth spins on an imaginary line called an axis that runs from the north pole to the south pole, while also orbiting the sun.
有些人相信地球的北极和南极以前并不是在它们现在所在的位置。
Some people believe that the Earth's North and South poles weren't always located where they are now.
由于这些过程发生在两个半球，因此北极光和南极光就出现了。
Since these processes occur above the two hemispheres, both the Northern and the Southern light are created.
除了留鸟，南非全年都“接待”来自非洲最北部、北极、欧洲、中亚、中国和南极洲的各种鸟类。
Apart from the resident birds, South Africa hosts birds from further north in Africa, the arctic, Europe, Central Asia, China and Antarctica during the year.
橙色和蓝色的线条分别表示地球磁场中南极、北极两种相反磁性的磁力线。
The orange and blue lines depict the opposite north and south polarity of Earth's field lines.
这就意味着，如果你身处南极或北极附近，你离地心的距离就比在赤道更近一些——纬度的测量就与地心有关。
This means that near the north or South Pole you are actually closer to the centre of the earth-where the Angle is being measured from-than you would be at the equator.
每逢十二月，当黑夜笼罩在北极上空，南极洲就开始享受着极昼的阳光。
Each December, while darkness engulfs the arctic, Antarctica enjoys round-the-clock sunlight.
著名的夜间极光(北面为北极光，南面为南极光)是粒子从尾部流入所造成的结果。
The famous night-time auroras (borealis in the north, australis in the south) are the result of particles streaming in from the tail.
被称为南极光，这种飘动发光的带子通常在北半球高纬度也能看到，称北极光。
Known as aurora australis or southern lights, the shifting, luminous bands are commonly seen at high northern latitudes as well, there known as the aurora borealis or northern lights.
它也被发现于海洋，特别是南极和北极水域。
It can be found in oceans, especially the arctic and Antarctic waters.
南极这个名称来自亚里斯·多德，他把北极称为北方的“阿克·托斯”(Arktos，熊)，因为北极坐落于大熊星座之下。
The name Antarctica came from Aristotle, who called the arctic north "Arktos" after "the bear", the constellation it lay under.
南极这个名称来自亚里斯·多德，他把北极称为北方的“阿克·托斯”(Arktos，熊)，因为北极坐落于大熊星座之下。
The name Antarctica came from Aristotle, who called the arctic north "Arktos" after "the bear", the constellation it lay under.
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