The international protocol to protect the ozone layer in 1987 was-
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A.
Vienna Convention
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B.
Cartagena protocol
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C.
Kyoto protocol
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D.
Montreal Protocol
Correct Answer:
D. Montreal Protocol
Explanation:
The Montreal Protocol on Substances that Deplete the Ozone Layer, finalized in 1987, is the international agreement specifically established to protect the stratospheric ozone layer. It focuses on the mandatory phase-out of ozone-depleting substances, such as chlorofluorocarbons (CFCs) and halons, which shield the Earth from harmful ultraviolet radiation. While the Vienna Convention of 1985 provided the framework for ozone protection, the Montreal Protocol set the actual binding targets and timelines for global cooperation. This distinguishes it from other agreements like the Kyoto Protocol, which targets greenhouse gases, or the Cartagena Protocol, which addresses biosafety.
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