Massive Iceberg Breaks Free and Begins Drifting After 30 Years

The world's largest iceberg, A23a, has finally moved for the first time in 30 years after breaking free from the ocean floor near Antarctica. Weighing nearly a trillion metric tons and measuring 1,500 square miles, the iceberg could pose problems for wildlife as it enters the Southern Ocean and potentially blocks access to food for animals on South Georgia Island. If it continues its trajectory, it could also disrupt shipping lanes near South Africa. Additionally, the melting iceberg could release minerals gathered during its time as a glacier, providing some nutrients to organisms in the area.