The United Nations publishes the Third World Ocean Assessment Release

On 8 June 2026, in conjunction with World Oceans Day, the United Nations officially released the Third World Ocean Assessment (WOA III), the most comprehensive global assessment of the state of the marine environment, covering environmental, social, and economic dimensions of ocean sustainability.

Produced through the United Nations Regular Process for Global Reporting and Assessment of the State of the Marine Environment, including Socio-economic Aspects, WOA III represents the collective effort of more than 650 experts from around the world. The assessment provides an integrated scientific basis to support governments, international organisations, and decision-makers in addressing ocean challenges and advancing the Sustainable Development Goals, particularly SDG 14, as well as the objectives of the UN Decade of Ocean Science for Sustainable Development.

Building on the previous editions published in 2016 and 2021, WOA III offers updated information on the condition of the global ocean while introducing new perspectives on sustainability pathways, equity and gender considerations, and the integration of Indigenous, traditional, and local knowledge into ocean governance.

Among its key findings, the assessment highlights the accelerating impacts of climate change on ocean systems, including ocean warming, sea-level rise, acidification, deoxygenation, and increasing pressures on marine biodiversity. The report also underscores the growing challenges posed by pollution, overexploitation of marine resources, habitat degradation, and cumulative human pressures on coastal and marine ecosystems. At the same time, it identifies opportunities for action through improved governance, strengthened scientific knowledge, enhanced monitoring systems, nature-based solutions, and more inclusive decision-making processes.

The assessment places particular emphasis on the importance of sustained ocean observations, advances in technologies such as artificial intelligence, autonomous observing systems, and digital tools, as well as the need to strengthen capacity development and equitable access to scientific knowledge worldwide. These themes closely align with the mission of the Decade Collaborative Centre for Coastal Resilience (DCC-CR), which supports the implementation of the Ocean Decade through coordination, capacity development, and the promotion of science-based solutions for coastal resilience.

Looking ahead, the Fourth World Ocean Assessment (WOA IV) is already underway. In January 2026, Prof. Nadia Pinardi, Director of the DCC-CR, was formally appointed to the United Nations Group of Experts responsible for guiding the fourth cycle of the Regular Process. Through this role, she will contribute her scientific expertise to the next global assessment of the state of the marine environment, helping to shape future knowledge and policy directions for ocean sustainability.

The release of WOA III represents a major milestone for the global ocean community and provides an essential reference for researchers, policymakers, practitioners, and stakeholders working to advance a sustainable and resilient future for the ocean.