Warming of the middle depths of the Southern Ocean could unleash the "widespread collapse" of the West Antarctic icesheet by the year 3000, it says.

该预测认为，南大洋中间深度水域升温到3000年可能会导致南极洲西部冰原的“大面积崩溃”。

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Were it to melt entirely, Greenland's icesheet would drive up ocean levels by some seven metres (23 feet), drowning coastal cities around the world.

如果格陵兰冰原完全融化，世界各地海洋水平面将会上升7米（23英尺）左右，淹没沿海城市。

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