Climate Change Traps Warm Water in Ocean Depths

Climate change on earth has put a freshwater lid on the Antarctic ocean, trapping warm water in ocean depths, found in a new study. In the mid-1970s, the first available satellite images of Antarctica during the polar winter revealed a huge ice-free region within the ice pack of the Weddell Sea. This ice-free region, or polynya, stayed open for three full winters before it closed. Subsequent research showed that the opening was maintained as relatively ...