Preface

It is our great pleasure to present the Proceedings of the 2nd International Conference on Sustainable Environment, Development, and Energy (CONSER 2025), which was successfully held on 22-23 October 2025 in Yogyakarta, Indonesia.The conference provided an international academic forum for researchers, academics, industry practitioners, and policymakers to exchange knowledge and discuss current advances related to the theme "Bridging Science and Technology for a Sustainable Earth."CONSER 2025 aimed to foster interdisciplinary dialogue and promote innovative research addressing the multifaceted challenges of sustainability.The conference facilitated collaboration across scientific and technological domains to support sustainable development and resilient solutions at local, regional, and global scales.