Air conditioning eventually reach the upper atmosphere. Once the refrigerant reaches the stratosphere, UV radiation from the Sun homolytically cleaves the chlorine-carbon bond, yielding a chlorine radical. These chlorine radicals catalyze the breakdown of ozone into diatomic oxygen, depleting the ozone layer that shields the Earth's surface from strong UV radiation. Each chlorine radical remains active as a catalyst until it binds with another radical, forming a stable molecule and quenching the chain reaction. Prior to 1994, most automotive air conditioning systems used R-12 as a refrigerant. It was replaced with R-134a refrigerant, which has no ozone depletion potential. Old R-12 systems
Sun goddess of the Earth The Weather god of Nerik was her son with the god , while the Weather god of Zippalanda was her son by the . The Sun goddess of the Earth, as a personification of the chthonic aspects of the Sun, had the task of opening the doors to the Underworld. She was also the source of all evil, impurity, and sickness on Earth. In the Hurrian-Hittite "Song of the Ransom," the Sun goddess of the Earth / Allani invites the king of the gods, Tarḫunna/Teššub and his brother Šuwaliyat/Tašmišu to a feast in the Underworld and dances before them. Otherwise