Final Report of the Joint Study Group GCOS (GCOS-246)

This document presents the final report and recommendations from the Joint WMO, IOC, ISC and UNEP Study Group on the Global Climate Observing System (JSG-GCOS). It reviews the GCOS governance and structure, identifies strengths and areas for improvement, and provides high-level and detailed recommendations for enhancing GCOS' effectiveness. Key topics include revising GCOS' mandate, improving stakeholder engagement, addressing new climate challenges, clarifying relationships with sponsors, and ensuring sustainable funding. The report aims to guide the future development of GCOS to better meet evolving climate observation needs.