Iceberg 4 times size of London snaps off Antarctic ice shelf

A trillion-ton iceberg measuring 5,800-sq-km, nearly four times the size of London, has separated from Antarctica's 200-600 metre thick Larsen C Ice Shelf, making it one of the biggest break-offs ever recorded. The rift, which was being monitored for over a decade, had grown by 17 km in 6 days in May, speeding up the separation process, said scientists.