Environment & Ecology · International Treaties
In which year did the United Nations Environment Programme (UNEP) successfully forge the Montreal Protocol agreement to freeze the production of Ozone Depleting Substances like CFCs at 1986 levels?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11992
- 21988
- 31987✓
- 41990
Correct answer
1987
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