Calling this a "disaster" seems a bit overblown? It's an iceberg, drifting around is what they do, and it'll eventually melt away. South Georgia is already an exceptionally cold place, it's not like this is going to go freeze the corals at the Great Barrier Reef or something.
The actual disaster here is the possibility of global warming causing the ice caps to melt en masse, but that's a different problem.
The actual disaster here is the possibility of global warming causing the ice caps to melt en masse, but that's a different problem.