The world’s largest iceberg, A23a, has undergone a dramatic reduction in size over the past three months. According to the Arctic and Antarctic Research Institute, the iceberg simultaneously lost three large sections, each ranging between 60 and 300 square kilometers, amounting to a total loss of 36% of its area. Today, it has been reduced to about 1,750 square kilometers, roughly the size of St. Petersburg. A23a first broke away from the Antarctic ice shelf in 1986, originally covering an area of about 4,170 square kilometers. The fate of the world’s largest iceberg remains uncertain as it continues its journey through the Southern Ocean.