How the world has changed since the Earth Summit in 1992 / Como ha cambiado el mundo desde la cumbre de la tierra en 1992

Como ha cambiado el mundo desde la cumbre de la tierra en 1992

This image shows the changes that has taken the world with respect to the Earth Summit 1992.

Source: BBC word

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Esta Imagen muestra los cambios que ha tenido el mundo con respecto a la cumbre de la tierra de 1992.

Fuente: BBC word

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