My article is about an Antarctic ice shelf that is about to break into two big pieces. A big crack in the ice shelf, which is called Larsen C, grew by 18 kilometers during the peak of summer in that region. The year was 2016. This separating ice is now only about 20 kilometers from Larsen C’s edge. Satellite images in 2014 showed that a crack in Larsen C rapidly extended along the ice shelf. If the crack reaches the ice shelf’s edge. It could break off a chunk of ice the size of Delaware. The loss would reduce Larsen C’s size by about 10 %. That would shrink the ice shelf to its smallest size in recorded history. And it could kick start the shelf’s disintegration. The scientist leading the 2015 study estimated that Larsen C would break within the next five years. Larsen C is the largest ice shelf in the Artic Peninsula. Because it already floats in the sea, the breakage won’t immediately raise global sea levels. But if the shelf collapses, then glacial ice could flow into the sea unabated and contribute to rising sea levels. Scientists can’t say for sure whether Larsen C will break off. But they think it could be soon.