An international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. The original Protocol was agreed on 1987 and entered into force on 1989. In the 26 years following the signing of the Protocol, there has been a reduction of over 98% in the consumption of ozone-depleting substances. As a result, climate projections indicate that the ozone layer will return to 1980 levels between 2050 and 2070. The resulting reduction in ultraviolet radiation will prevent an estimated 2 million cases of skin cancer, and several million cases of cataracts, each year by 2030. The Protocol was ratified by all the countries in the United Nations (196 states and the European Union), making it a prime example of exceptional international co-operation. Key to the success of The Protocol was the creation of a Multilateral Fund to assist developing countries meet their commitments.
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