student | Span UN 2104

El desagüe del Valle de México, siglos XVI-XXI. Una historia paradójica

by Renata Ruiz Figueroa | Nov 25, 2025

Description: This article explores the history of drainage in the Valley of Mexico from the 16th to the 21st century. It highlights the paradoxes between the objectives of controlling water and the environmental and social problems that have been generated as a...

País Maíz: Campaña Nacional “Sin maíz no hay país”

by Renata Ruiz Figueroa | Dec 10, 2025

Description: “Sin maíz no hay país” (“Without corn there is no country”) is a Mexican slogan and social movement that defends food sovereignty, culture, and peasant agriculture. It promotes the cultivation and consumption of native corn...

Open Educational Resources

El desagüe del Valle de México, siglos XVI-XXI. Una historia paradójica

País Maíz: Campaña Nacional “Sin maíz no hay país”