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28 Dez 1986 Jahr - Protocolo de Montreal

Beschreibung:

Acuerdo internacional para proteger la capa de ozono.

Zugefügt zum Band der Zeit:

Antecedentes del desarrollo sustentable

ByArmando Martinez

9 Mon. zuvor

0

0

263

Datum:

28 Dez 1986 Jahr

Jetzt

~ 38 years ago

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