Of course there's a link between this event and the climate. Clearly. If Antarctica weren't cold, there would be no ice shelf to begin with. The salient point

Of course there's a link between this event and the climate. Clearly. If Antarctica weren't cold, there would be no ice shelf to begin with. The salient point is that this specific event would have seemingly happened with or without our currently-changing climate. As the iceberg that the shelf extends from flows out toward the ocean, the shelf grows until it reaches a point where forces acting on the floating mass of ice induce part of it to calve away from the rest of the shelf.