According to the Arctic and Antarctic Research Institute, the frozen giant has split into small fragments, losing 99% of its original area over the entire period of its existence ST. PETERSBURG, April 21. /TASS/. The A23a iceberg, which until last year was the largest in the world, has completely broken apart while drifting in the Southern Ocean, the press service of the Arctic and Antarctic Research Institute (AARI) reported. "The world’s biggest iceberg, A23a, which has been tracked by the