Editorial to One Health. International, Supranational, Regional and National Experiences

The editorial introduces the special issue of Legal Policy & Pandemics devoted to the One Health approach, placing it against the backdrop of pandemic and ecological crises that have exposed the structural interdependence between human, animal and ecosystem health. It outlines the overall structure of the volume, which brings together contributions that, from a comparative perspective, examine the main legal and institutional challenges raised by One Health: from the definition of “health” and “environment” to the allocation of competences across levels of government, and from fundamental rights issues to climate justice debates. The editorial particularly stresses the role of multilevel governance, prevention policies and cross‑sectoral cooperation, arguing that the effectiveness of One Health depends on the ability of legal systems to overcome regulatory fragmentation, administrative overlap and disciplinary silos. In this light, the special issue is presented as a laboratory for rethinking administrative and environmental law in systemic terms, exploring new forms of public responsibility, participation and integration between health protection and ecosystem preservation.