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27 dic 1991 anni - Cumbre de la Tierra de Río de Janeiro

Descrizione:

Estableció principios clave como la Agenda 21 y promovió la integración de la sostenibilidad en políticas globales.

Aggiunto al nastro di tempo:

Antecedentes del desarrollo sustentable

ByArmando Martinez

9 mesi fa

0

0

262

Data:

27 dic 1991 anni

Adesso

~ 33 years ago

Immagini:

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