ICEER 2025 is a joint organization of the International Society for Environmental Information Sciences and School of Engineering (ISEP) of the Polytechnic of Porto (P.Porto), and will be held at Chengdu, China during September 12-14, 2025. Energy and environment are research and education areas of critical importance in today's world. The ongoing climate crisis and the pressing need for sustainable development strategies require transformative engineering solutions and innovations in broad areas ranging from energy sciences to geoengineering.