To me it seems optional (as many commas do). Much depends on the writer's flow of thought, the length of sentence segments that need to be or can reasonably comprehended as a unit, the complexity of the structure, etc. If the comma after 'world' is omitted, there is a chance that the reader may think (even momentarily) that it is the world that is highly resolved.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.