Ozone depletion describes the related phenomena observed since the late 1970' a steady decline of about four percent in the total amount of ozone in earth' stratosphere (the ozone layer), and a much larger spring time decrease in stratosheric ozone around earth' polar regions. The latter phenomenon is reffered to as the ozone ***.
The main cause of ozone depletion and the ozone **** is man-made chemicals especially is man-made chemicals-Ralocarbon refrigerants like cholorofloro carbon (CFC), Hydrofloro carbon (HFC), propellant chemical and foam-blowing agents etc.
