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16 sept 1986 año - Montreal protocol

Descripción:

Montreal protocol is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

Añadido al timeline:

Environmental Movement

ByDan Dissell
8 sep 2017
2
0
2114

fecha:

16 sept 1986 año
Ahora mismo
~ 39 years ago
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