CMS COP15 (2026) – Overview The CMS holds its 15th COP in Campo Grande, Brazil from 23 March to 29 March 2026 . The theme, “Connecting Nature to sustain life”, underscores the link between migratory wildlife and human well‑being. Key Developments (COP‑15) 133 nations are parties to the CMS , enabling coordinated trans‑boundary conservation. The interim report released ahead of the meeting warns that 49 % of the 1,189 listed migratory species are in decline , with 24 % facing extinction . India’s role: after hosting COP13 in 2020, India continues as the CMS Presidency (2023‑2025) and highlighted several Indian species in Appendix I. New scientific data on habitat loss, climate change, and disease (e.g., H5N1 ) were presented as emerging threats. Important Facts about the CMS Framework The treaty, signed in 1979 under UNEP, is legally binding and focuses on migratory animals that cross migratory species ’ national boundaries. Two appendices guide conservation action: Appendix I : Species classified as Extinct in the Wild, Critically Endangered or Endangered (IUCN categories). Listing triggers strict protection, hunting bans, and habitat restoration. Appendix II : Species with an unfavourable conservation status (including Vulnerable and Near‑Threatened) that require international agreements for their management. A species may appear in **both** appendices if it meets the criteria of each. Current Appendix I roster: 188 species – 28 terrestrial mammals, 23 aquatic mammals, 103 birds, 8 reptiles, 26 fish. Indian species in Appendix I include the Great Indian Bustard , Asian Elephant , Bengal Florican , Siberian Crane , Hawksbill Sea Turtle , Olive‑Ridley Turtle and Leatherback Sea Turtle . Insights from the Interim Report (2026) The report updates the first comprehensive assessment presented at COP14 (Samarkand, 2024). Key observations: Out of 1,189 listed species, 582 are experiencing population declines. Shorebirds dominate the upward shift in extinction risk: 18 of 26 species moving to higher IUCN categories are migratory shorebirds. Sharks and rays in the northern Indian Ocean now face heightened extinction risk, while South Asian vulture populations show modest recovery. Broad‑host‑range detection of H5N1 underscores disease as a cross‑cutting threat to migratory fauna. UPSC Relevance Understanding the CMS framework is vital for GS III (Environment & Ecology) and GS II (International Relations). Aspirants should be able to: Explain the legal status of the CMS and its role in multilateral environmental governance. Distinguish between Appendix I and Appendix II listings and their implications for conservation policy. Analyse the significance of India’s species listings and its presidency role in shaping global migratory‑species strategies. Link emerging threats such as habitat loss, climate change, and zoonotic diseases (e.g., H5N1 ) to broader discussions on biodiversity loss and sustainable development. Way Forward To curb the alarming decline of migratory fauna, the following steps are recommended: Strengthen trans‑boundary protected areas and migratory corridors, especially in the Indian subcontinent. Accelerate the ratification of international agreements for Appendix II species, ensuring coordinated management. Integrate disease surveillance (e.g., H5N1 monitoring) into wildlife conservation programmes. Mobilise financial resources through the CMS budget and partner agencies to support habitat restoration and community‑based stewardship. Effective implementation of these measures will not only improve the status of migratory species but also contribute to India’s commitments under the Convention on Biological Diversity and the UN Sustainable Development Goals .