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sep 20, 1979 - Programa Earth Watch del Consejo de Administración del Programa de las Naciones Unidas para el Medio Ambiente

Description:

Por primera vez se estudian los contaminantes atmosféricos, de manera específica.

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Historia del Desarrollo Sostenible

ByPatricia Ramírez Ornelas

29 Jan 2018

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Date:

sep 20, 1979

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~ 46 years ago

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