"Water forever", a life project that lives up to its name and brings the resource to the Sierra de Puebla in Mexico | Video | CNN

Since the Hernández-Herrerías couple moved to the Mixtec-Popoloca area in 1980 - on the border between Puebla and Oaxaca - they have turned their encouragement to help into an achievement that allows the inhabitants of the area to have water all year round. despite the harsh semi-desert conditions typical of the region.

This is his story.