The Montreal Protocol was enacted in response to the discovery that the ozone layer—which shields life on Earth from harmful radiation—was diminishing. Signed by the majority of the world’s nations, the treaty mandates the decreased use of ozone-depleting substances such as chlorofluorocarbons (CFCs) and has been amended several times based on new scientific data. By 1993, CFC production had dropped dramatically. If the agreement is followed, the ozone layer is expected to recover by what year? Discuss
Source: The Free Dictionary