A huge ice shelf in the Antarctic is in the last stages of collapse and could break up within days in the latest sign of how global warming is thought to be changing the face of the planet.

• 南极的一个巨大的冰架正处于崩塌的最后阶段，并在最近几天就可能断裂。这将是全球性气候变暖如何改变地球面貌的最新迹象。