Rising Ocean Heat Threatens Antarctic Ice Shelves, Potentially Accelerating Global Climate Effects
A new study reveals that Antarctica is experiencing melting from below due to rising ocean temperatures, posing a threat to its ice shelves. This phenomenon is attributed to the movement of a warm, salty water mass known as the circumpolar deep water (CDR), which has expanded and moved towards the Antarctic continental shelf over the past two decades. The study, conducted by researchers from the University of Cambridge and the University of California, highlights that this undersea heat source could destabilize the ice shelves, which act as barriers holding back inland ice sheets and glaciers. The melting of these ice shelves could lead to significant sea level rise and other catastrophic climate effects globally. The research utilized data from both ship transmissions and the Argo, a network of floating probes, to provide a comprehensive view of the changes in heat distribution over the last 40 years.