Promoting one’s own health and environmental protection and doing good at the same time – a group of five dedicated 5th grade students BAfEP (training institute for elementary education of the Don Bosco schools in Vöcklabruck) succeeded in doing this. The discussion of the ecological and health consequences of disposable plastic gave rise to the idea of declaring war on the use of disposable plastic in beverages with a project. The students Anna Bachinger,