Last date for submission of paper: unknown; Contact person: apicens; The primary goal of the conference Asia-Pacific Conference on Engineering & Natural Sciences (APICENS) is to promote research, discoveries and developmental activities in Environmental Science and Engineering. APICENS will take place from August 12 to 14, 2020 in Hawaii, USA. Facing number of challenges, climate change awareness and consensus in environmental sustainability, we are always looking for ways to go green and learn about how to put more effort in developing sustainability on the future. As one of the global citizens, it is the responsibility of each individual and nation to protect the global environment. International cooperation will provide the timely solutions and the effectiveness needed to help maintain the environmental at minimum ecological balance.