This iceberg was once the biggest in the world. Now it has just weeks left - BBC News A23a was once twice the size of Greater London but now its 40-year journey is coming to an end.

www.bbc.com/news/resourc... #a23a #antarctica #calve #climatechange #collosus #filchnericeshelf #iceberg #insightful #warmerwaters #weddellsea