再说，尽管在西南极冰原低于海平面的区域，其中也有相对安全的突起地形。
What's more, even within the areas of the WAIS that lie below sea level, there are localized spots that poke above it, and these too would be relatively safe.
SCAR研究提出，到2100年如果南极冰原开始融化，海平面可能上升1.4米。
The study by SCAR suggested that sea levels could rise by up to 1.4m by 2100 if the Antarctic ice began to melt.
在2003年到2007年之间，这颗卫星的轨道数次经过南极冰原。发现大部分的南极冰流变得稀薄。
Between 2003 and 2007, the satellite's orbit passed over Antarctica's glaciers several times, and showed that most of the ice streams draining Antarctica are getting thinner.
帝企鹅只生活在严酷的南极冰原，它们完全颠倒了传统的父母角色。
Traditional parenting roles are reversed for emperor penguins, which live only on the harsh Antarctic ice.
两座巨大的冰山从南极冰原脱落，阻断了成年企鹅前往哺育区的道路，导致成千上万只企鹅宝宝面临着饿死的威胁。
Tens of thousands of baby penguins face starvation after two giant icebergs broke off the Antarctic ice sheet and blocked their parents' way to feeding areas.
来自10个国家的科学家们如今几乎已经钻穿了南极大陆3000米深的冰原。
Scientists from 10 nations have now almost completely drilled through a 3,000-meter depth of ice high in the Antarctic mainland.
然而，在地球的“底部”——南极洲东部，一片巨大的蓝色冰原保持着它的纯净和荒瘠。
At the bottom of the Earth, however, in East Antarctica, huge sheets of blue ice remain pure and barren.
但是，即使只有南极洲西部和格陵兰岛大冰原的一半融化的话，海平面就会上升6 -7米，世界上的许多大城市都会被淹没，前景令人沮丧。
But if even half of the West Antarctic and Greenland ice sheets were to melt, sea levels would rise by six or seven metres, flooding many of the world's big cities, and the outlook is discouraging.
科学家们一致认为，这一情境中的关键推手是南极西部的冰层，这是一块跟巴西（面积）差不多大小的冰原，厚达7000英尺。
Scientists agree that the key player in this scenario is the West Antarctic ice sheet, a Brazil-size mass of frozen water that is as much as 7000 feet thick.
至于极地，则以地球南极洲的干谷为模型，比拟成无边冰原中的一片冰冻荒漠。
For the polar regions, the model is the Dry Valleys of Antarctica, a frozen desert in a landscape of endless ice.
至于极地，则以地球南极洲的干谷为模型，比拟成无边冰原中的一片冰冻荒漠。
For the polar regions, the model is the Dry Valleys of Antarctica, a frozen desert in a landscape of endless ice.
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