The 16th International Conference on Environmental Science and Engineering (ICESE 2026) will be held in Tokyo, Japan from September 18-20, 2026. The conference is organized by a committee of experts in the field and aims to bring together innovative academics and industrial experts to share their research and developmental activities in Environmental Science and Engineering. The primary goal of the conference is to promote research and developmental activities in Environmental Science and Engineering and to facilitate the exchange of scientific information between researchers, developers, engineers, students, and practitioners. The conference will provide a platform for participants to share their views and experiences in Environmental Science and Engineering and related areas. The conference will be held annually, making it an ideal platform for people to engage in environmental science and engineering. The organizers welcome contributions from teaching and research personnel and students in the field. The conference will feature a program of keynote and invited speakers, including Guangwei Huang, Mikio Ishiwatari, Jan Baeyens, Kaimin Shih, Raf Dewil, Franz Winter, and Valentina Busini, among others. The conference proceedings will be published in the Springer Book Series, which is abstracted and indexed by Scopus. Authors can submit their full papers or abstracts for presentation without publication. The submission deadline is April 25, 2026, with notification of acceptance before May 15, 2026. The registration deadline is May 30, 2026, and the conference dates are September 18-20, 2026. The conference will be a hybrid event, allowing participants to attend in person or remotely. The ICESE conference series has a history of attracting scholars from around the world to share their research and ideas in the field of Environmental Science and Engineering.