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1 jan 1987 ano - Montreal Protocol

Descrição:

The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

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BySoughtout
29 ago 2017
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1411

Data:

1 jan 1987 ano
Agora
~ 38 years ago

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