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The 2025 Independent Community Service Program (KKN) of the University of Muhammadiyah North Sumatra was held in Dalu 10A Village, Tanjung Morawa District, Deli Serdang Regency. This activity aims to increase elementary school students' understanding and awareness of the environment through a nature literacy program. An educational approach was carried out through activities introducing organic and inorganic waste, recycling used goods, and planting seedlings in the school environment. In addition, students also carried out supporting activities such as financial management education, MSME promotion, and socialization of the importance of investment for students. The implementation results showed an increase in student awareness in maintaining school cleanliness, the emergence of environmentally conscious behavior, and active involvement of the community and school in maintaining the sustainability of the program. This KKN program successfully fostered values of social responsibility and ecological awareness among students and strengthened the synergy between students, schools, and the village community.

Household environmental problems such as poor waste management, the practice of burning waste, and limited use of home yards remain major challenges in creating clean and healthy residential areas. Dasawisma, as the smallest unit within the PKK structure, holds a strategic role in fostering environmental awareness and pro-environmental behavior at the family level. This Community Service Program (PkM) aims to build an environmentally caring community through strengthening the role of Dasawisma, improving members' knowledge, and encouraging new habits in household environmental management. The method used a participatory approach consisting of problem identification, interactive counseling sessions, hands-on practice in waste management and yard utilization, and field mentoring. The results indicate an increase in members' understanding of environmental issues, behavioral changes in sorting organic and inorganic waste, simple composting practices, and the cultivation of plants in home yards. In addition, collective awareness and the emergence of local leaders helped sustain the environmental movement within the community. This program demonstrates that strengthening Dasawisma is an effective family-based empowerment strategy to support social transformation toward a cleaner, healthier, and more sustainable environment.

The establishment of a waste bank program in Sabatan Hamlet, Ringinanom Village, Magelang Regency, is one of the solutions to address the increasing household waste problem. This program was carried out through the Community Service Program (KKN) of Tidar University from January to February 2025, with the aim of raising public awareness about the importance of environmentally friendly waste management. This research used a descriptive qualitative method, with data collection techniques including open interviews, field surveys, and focus group discussions (FGD). The program implementation was conducted in four main stages: preparation, socialization, execution, and assistance. During the execution phase, the "UD Sregep" waste bank was successfully established, focusing on the management of paper, plastic bottles, and cans. Additionally, the program successfully integrated inorganic waste management with Black Soldier Fly (BSF) maggot cultivation for organic waste, creating a sustainable waste management system that holds economic value for the community. The program received positive support from various stakeholders, including the community, village government, and other parties, demonstrating its success in improving the welfare of the community through waste utilization.