Giant Antarctic iceberg 'hanging by a thread', say scientists

Split in the Larsen C ice shelf will release an iceberg a quarter of the size of Wales, changing the landscape of the Antarctic peninsula

A giant section of an Antarctic ice shelf is hanging by a thread and could break off at any moment, researchers have revealed.

The split in the Larsen C ice shelf of the Antarctic peninsula will release a huge iceberg 5,000 sq km in size - an area about a quarter of the size of Wales.