但是，一个大冰原的融化就不同了。
这告诉了我们冰原会以多快的速度融化。
This gives us an idea of how fast a large ice sheet can melt.
本片情节从冰原时期结束时描述起。
那时我们夜里在冰原的雪上背靠背的坐着。
There we sat at night in the tundra, in the snow, back to back.
白蜘蛛冰原上的保龄球道结冰后安静下来。
进行光合作用的生物在冰原上投下一缕绿色。
Photosynthesizing organisms cast a green glow across the sweep of the ice.
现在，随着格陵兰冰原的消失，海平面上升几米已是不可避免。
Several metres of sea level rise is now inevitable as the Greenland ice sheet disappears.
现在，随着格陵兰冰原的消失，海平面上升几米已是不可避免。
Several metres of sea level rise is now inevitable as the Greenland ice sheet disappears.
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