Widespread use of ozone-depleting substances(ODS) leads to depletion of the ozone layer. The ozone layer is vital for a balanced environment on earth. Accordingly, its depletion allows the sun's harmful ultraviolet radiation to reach the earth. This radiation damages crops, destroys some types of marine life and causes health issues such as skin cancer and cataracts in humans, As such they have been subject to an international ban, as discussed below. In 1995, chlorofluorocarbons(CFCs- the most potent ODSs) were second only to illicit drugs as the most lucrative contraband being smuggled into the united states. for this reason, trade in CFCs was already beginning to be phased out in 1995. Between 1995 and 2000, over 100 individuals were convicted for CFC-related crimes in the US. Even so, 20 years on, the US has not yet been successful in completely phasing out CFCs.