Update: As of today, the A68 iceberg, once the world’s largest, has lost significant chunks of ice and continues to break apart, satellite images show. On December 17, about 69 square miles broke from the iceberg, forming A68d. On December 22, the front, pointed tip of the iceberg broke, producing 68-square-mile A68e and 252-square-mile A68f. Since the iceberg calved from the Larsen C ice shelf three years ago, it has lost two-thirds of its volume. Recent satellite images show that the icebergs are caught in a strong ocean current that seems likely to sweep the chunks of ice around the southern edge of the island and spin them north. It’s unclear whether the remainder of A68 and its siblings will become stuck there and cut South Georgia’s wildlife off from feeding grounds, but the chunks of ice are rapidly releasing freshwater into an ecosystem adapted to saltwater.