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3 giug 1992 anni - Se celebra la "Cumbre de la Tierra" de las Naciones Unidas en Rio de Janeiro
Descrizione:
De esta cumbre surgen dos convenciones y se acuerdan las acciones a tomar como parte de la "Agenda 21".
Aggiunto al nastro di tempo:
Historia de la Sostenibilidad
By
Andrés Calva
6 ott 2017
0
0
506
Data:
3 giug 1992 anni
Adesso
~ 32 years ago
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