Given the layout of the One Piece world, it can be inferred that Shanks and Buggy was arguing about the North Pole (would exist in North Blue) and the South Pole (would exist in South Blue). When asked about the Argument Oda said that Shanks was right that the South Pole is colder referencing the Earth.. Do you think Oda is saying that in the One Piece world there is more landmass in South Blue or Did he misspeak and didn't think about it.