To reduce the use of plastic products and work towards a sustainable environment, National Cheng Kung University (NCKU) has been actively promoting waste reduction at the source and waste separation and recycling. To promote waste reduction, starting from the first semester of the 2019 academic year, the Department of Architecture at NCKU prohibited students from using polystyrene materials to make models. This action aligns with environmental protection initiatives and the concept of a circular economy, demonstrating that environmental friendliness begins in the classroom.

In response to the United Nations' Sustainable Development Goals (SDGs) and in alignment with the government's plastic reduction policies, NCKU's on-campus food vendors are required to comply with plastic reduction regulations in their commercial contracts to achieve environmental sustainability goals.

"Sustainability is a way of life." Research conducted by Assistant Professor Hsin-Tien Lin's team from NCKU's Department of Environmental Engineering found that reducing plastic packaging for supermarket fruits and vegetables can significantly reduce waste. Hsin-Tien Lin stated that by making environmentally conscious choices in our daily lives, such as reducing plastic packaging, each individual can contribute to a more environmentally friendly direction.