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
Masters of the Sun Vol. 1 for a moment in which will.i.am pulled out his phone mid-performance, prompting an apologetic response from will.i.am and Taboo on Twitter. The group will embark on the Masters of the Sun Tour to promote the album, performing fourteen shows across Europe in October and November 2018. A second leg of the tour in Asia will occur in 2019. British electronic musician Lone, along with his record label R&S, publicly accused The Black Eyed Peas of illegally sampling his 2013 track "Airglow Fires" for "Masters of the Sun"s fifth track, "Constant". R&S alleged that neither the band or Interscope Records contacted