Sargassum Seaweed Invasions - Webinar

This webinar discusses the proliferation of Sargassum seaweed across the Caribbean and West Africa, addressing its environmental, economic, and health impacts. Organised by the United Nations Environment Programme and partner organisations, the session provides a regional context for the increasing strandings observed since 2011. Presenters examine the scientific mechanisms driving these blooms, identifying nutrient runoff from major river systems, atmospheric deposition, and changing ocean temperatures as key contributing factors. The discussion highlights the severe consequences for local tourism and fisheries, while emphasising the need for coordinated international research and monitoring. Through scientific presentations and regional reflections, the webinar underscores the importance of developing forecasting systems, establishing best management practices, and fostering global collaboration to mitigate this expansive marine phenomenon.