Earth Now Has A Fifth Ocean

Don't panic, Earth hasn't suddenly changed, all the continents are right where we left them. This is a change in terminology only. We all know the four oceans: the Pacific, Atlantic, Indian, and Arctic, but back in elementary school geography you may have come across the name "Southern Ocean," referring to the body of water surrounding Antarctica. In terms of geographic separation there's really nothing delineating the Southern Ocean from the southern Pacific, Indian, and Atlantic, but there's a big difference in the water itself, thanks to the Antarctic Circumpolar Current, which makes the water of the Southern Ocean much colder and less salty than the oceans surrounding it.

The Southern Ocean has always exists, but it's always been an unofficial term, but now National Geographic has recognized it as the fifth ocean. I'm not sure how much that changes the reality of the world, and I didn't know National Geographic had the authority to declare this, but here we are. Earth now has five oceans.