The aim of CAZULU is to better understand and visualize and learn from cascading natural hazards of extreme weather (drought and/or long-term/intensive rainfall), flooding, erosion and landslide in Sweden? We hypothesize that understanding, visualizing and learning are key to dealing with multiple natural hazards, and thus we address how we can move from traditional hazard and risk maps into smart visualization to better understand and deal with multi -hazards events and their effect.