A23a, the world's largest iceberg, has begun to move from the ocean floor. For nearly 30 years, the iceberg had been stranded on the ocean floor. The iceberg broke away from the Antarctic shore in 1986. It later washed up on the shores of the Weddell Sea. Meanwhile, the A23A, which covers an area of around 4,000 square kilometers, is believed to be three times the size of New York City and more than twice the size of Greater London.
However, Dr Andrew Fleming, a remote sensing expert at the British Antarctic Survey, expressed worry that this could be owing to a variation in water temperature. He also stated that it has been in operation since 1986 and that if its size reduces over time, it will lose control and begin to move. He further mentioned that the first such iceberg migration was noticed in 2020.