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Get Answers to all your Questions
Justify the need for signing of ‘Montreal Protocol’ by the participating nations in 1987.
Answers (1)
Ozone acts as a shield absorbing ultraviolet radiation from the sun. UV rays are highly injurious to living organisms since DNA and proteins of living organisms preferentially absorb UV rays, and its high energy breaks the chemical bonds within these molecules.
Ozone depletion is occurring due to the high use of ozone-depleting substances. Recognizing the deleterious affects of ozone depletion, an international treaty, known as the Montreal Protocol, was signed at Montreal (Canada) in 1987 (effective in 1989) to control the emission of ozone-depleting substances.
Subsequently, many more efforts have been made and protocols have laid down definite roadmaps, separately for developed and developing countries, for reducing the emission of CFCs and other ozone-depleting chemicals.
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