IVAN GONZALO DEL CALLEJO VERACC Universidad Mayor de San Simón (UMSS) Bolivia 46 years old, Bolivian, Agronomist, MSc. Soil and water (specialization Irrigation) and PhD candidate at Wageningen University (Rural Sociology and Water Resources Management Departments). Lecturer and researcher at San Simón University (UMSS), Cochabamba, Bolivia. General Coordinator of Centro AGUA-UMSS (Andean Centre for Water Management and Water Use). Topics of Research: Irrigated agriculture, agrarian and technological change, water and climate change, water security.