In 2015, the Larsen C portion developed a 120-mile long crack from which, in 2017, a sheet of ice the size of the US state of Delaware collapsed into the Southern Ocean and melted. Figure \(\PageIndex...In 2015, the Larsen C portion developed a 120-mile long crack from which, in 2017, a sheet of ice the size of the US state of Delaware collapsed into the Southern Ocean and melted. Figure \PageIndex2: The Larsen B ice shelf (left) in the Antarctic Peninsula with a scale comparison to the US state of Rhode Island which collapsed and melted into the Southern Ocean in February of 2002.