The mural by Goal and Ryper, Keretan artists with deep graffiti backgrounds, emerges on the west side of the dome. We see the enormous head of Cipactli, the mythological being, similar to a crocodile, which was sacrificed by the Tezcatlipocas to create the world and nature, according to pre-Hispanic mythology. Cipactli gives his body so that Quetzalcoatl and Tezcatlipoca can divide it in two, creating the sky with his head and the earth with his body. So Cipactli is a metaphor for the beginning of nature. On the lizard, small molecules of carbon dioxide have reclaimed the atmosphere. Small and subtle, little by little they have made life more unstable and this is shown in the eyes of the sick reptile, which breathes a purplish and cloudy air. Beneath the lizard, life seeks to survive in the waters corroded by human activity and global warming, homes lie in agony barely able to withstand flooding. The Cipactli de Goal and Ryper looks to the south for the pure water that all beings claim, while pollutants and human settlements sneak up on it, threatening the life of Mexican fauna and the stability of the Earth as a result of the constant deterioration of water and habitats, generated by human ignorance and ambition.