ManBearPig
"ManBearPig" is the sixth episode in the tenth season of the American animated television series South Park. The 145th episode of the series overall, it first aired on Comedy Central in the United States on April 26, 2006. In the episode, Al Gore visits South Park to warn everyone about a creature called ManBearPig, an allegory for global warming. Gore then gets Stan, Kyle, Cartman, and Kenny trapped inside the Cave of the Winds.
