The first subproject of the HESCOR initiative focuses on advancing the theoretical, conceptual, and strategic aspects of Human and Earth System Coupled Research. This involves an examination of the field's history and current state, along with the development of innovative frameworks and methodologies. The project aims to tackle scientific challenges in multidisciplinary settings and pave the way for future research proposals and collaborations. This endeavor is a crucial step in enhancing our understanding of the complex interplay between human and Earth systems.