First slide

Ozone Depletion in the Stratosphere

Question

Which treaty is related to the control of the emission of ozone-depleting substances (ODS)?

Easy

A

Montreal Protocol (Canada) in 1987 and effective in 1989
B

The air (prevention and control of pollution) act, 1981
C

The environment (protection) act, 1986
D

Earth summit, 1992

Solution

Recognising 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.

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