What landmark international treaty protects the ozone layer by phasing out the production of chlorofluorocarbons (CFCs)?
Answer and explanation
Correct answer: A. the Montreal Protocol on Substances that Deplete the Ozone Layer
- Step 1: The Montreal Protocol (1987) phased out ozone-depleting substances, notably CFCs. Answer: the Montreal Protocol on Substances that Deplete the Ozone Layer. Why not the others: Kyoto targeted greenhouse gases; Stockholm targeted POPs; Minamata targeted mercury.
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