Antarctica's Gravity Hole Linked to Climate

A new study published in Scientific Reports reveals the existence and development of a 'gravity hole' beneath Antarctica. Researchers Alessandro Forte from the University of Florida and Petar Glišović from the Institut de Physique du Globe de Paris used earthquake recordings and computer modeling to reconstruct the Earth's interior and track changes over 70 million years. They found that the gravity hole, caused by variations in rock density, strengthened between 50 and 30 million years ago, coinciding with major climate shifts and the onset of widespread glaciation in Antarctica. This discovery suggests a potential link between Earth's internal processes, sea levels, and the formation of polar ice sheets, offering new insights into Antarctica's geological and climate history.