Superman flies toward a tidal wave which threatens to flood the Northern Hemisphere. The Northern Hemisphere was the northern most portion of a planet, moon, or other celestial body. Contents 1 History 1.1 Earth-1A 2 References 3 External Links History Earth-1A When a the Polar Ice Cap at the North Pole melted, a tidal wave was formed which threatened to flood the entire Northern Hemisphere, but Superman stopped it. References ↑ As seen in 1981 episode The Lava Men. ↑ As seen in the Superfriends season six episode The Lava Men (1981). External Links Northern Hemisphere at Wikipedia Retrieved from "https://superfriends.fandom.com/wiki/Northern_Hemisphere?oldid=88747" Categories: Locations Real locations Community content is available under CC-BY-SA unless otherwise noted.