Welcome to the official website of 2025 8th International Conference on Environmental and Energy Engineering (IC3E 2025). IC3E 2025 conference, in conjunction with ICSDGB 2025, is co-organized by Asia Pacific Institute of Science and Engineering(APISE), International Society for Environmental Information Sciences (ISEIS) and Sophia University. The conference will be hosted in Okinawa, Japan from May 14 to 17, 2025! It is a leading forum for researchers, practitioners, developers, and users to explore cutting-edge ideas and to exchange techniques, tools, and experiences. We invite the submission of original research contributions.

All the registered and presented papers will be submitted to the publisher for review, and papers that meet the requirements will be included in the volume of Journal of Physics: Conference Series (JPCS) (ISSN: 1742-6596)(online publishing). The publisher will submit articles to Engineering Village, Scopus, Web of Scienceand other databases for review and indexing after publication.