The Secretary for the Environment, Mr Wong Kam-sing, joined the representatives from different green groups and local media in an event on 29 September 2018 in the hope to arouse public attention on climate change which is threatening the globe. PolyU’s School of Design was one of the collaborators supporting this meaningful event and provided the idea of a folding fan. Over 1000 participants at the event echoed the call and folded the eco-paper fans, and this act symbolized their commitment to combat climate change by adopting a low-carbon lifestyle.