Scientists claim the collapse of the Conger ice shelf could be a warning of what may be coming if Antarctic temperatures continue to reach record highs.

Researchers with the British Antarctic Survey (BAS) have released alarming footage of a massive crack in the Larsen C Ice Shelf in the Antarctic Peninsula, which could give way to an iceberg the size of Halifax.

Scientists are watching, but not alarmed by, a growing crack at the edge of a key floating ice shelf in Antarctica.