Average sea ice extent at the end of the summer was 1.65 million square miles (4.28 million square kilometers), almost 30 percent lower than the previous record low. As winter cooled the Arctic waters, ice re-formed over the ocean, ...
average sea ice extent at the end of the summer was 1.65 million square miles (4.28 million square kilometers), almost 30 percent lower than the previous record blow/b. as winter cooled the arctic waters, ice re-formed over the ocean, ...