In January, we posted about an iceberg designated A23a, the world’s largest, which had begun to drift on the Antarctic Circumpolar Current into “iceberg alley.” As it drifted, it was being eroded by waves and melting in the relatively warmer waters of the Southern Ocean. The impact of the waves carved huge arches and caves in the 400-meter-high walls of the iceberg.
The expectations were that the berg would continue to melt as it drifted and would begin to break up, with luck, missing the British Overseas Territory of South Georgia.
Instead, A23a went precisely nowhere, as reported by the BBC. It remains in place just north of South Orkney Islands, turning in an anti-clockwise direction by about 15 degrees a day. And as long as it does this, its decay and eventual demise will be delayed.