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jan 1, 1972 - Primera cumbre de la tierra - conferencia de la ONU en el medio ambiente

Description:

Esta conferencia puso problemas ambientales en la agenda internacional por primera vez y sento las bases para en progreso del medio ambiente

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linea del tiempo sistemas ambientales

ByAntonino Brucato

12 Oct 2018

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Date:

jan 1, 1972

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~ 53 years ago

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