The study is grounded in the increasing prevalence of practical lifestyles among adolescents, which has led to a high consumption of single-use products and growing waste production in school environments. This phenomenon reflects not only an ecological issue but also a crisis of awareness in how creation is treated. From the perspective of Catholic faith, Laudato Si’ emphasizes that the environmental crisis is rooted in distorted ways of thinking and a throwaway culture, thus requiring an approach that engages moral and spiritual dimensions. The study employs a descriptive qualitative approach through observation and brief interviews with students, focusing on the implementation of the Friday Zero Waste Movement. The findings indicate that simple practices, such as: bringing personal food containers, reducing single-use plastics, and managing waste independently, can foster students’ ecological awareness. These habits also cultivate values of responsibility, self-discipline, and solidarity. Therefore, the Friday Zero Waste Movement functions not only as an environmental program but also as a concrete means of developing ecological spirituality. Catholic youth play a strategic role as agents of change who embody their faith through tangible actions in caring for our “common home.”
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