Caribbean Sargassum Seaweed Map 2025. An increase in phosphate and nitrogen water pollution, combined with warming waters, is believed to have supercharged seaweed normally carried by currents from the sargasso sea and created the sargassum belt, which. As the season moves toward summer,.

For many throughout the caribbean, sargassum is stinky, yucky and nasty, and destroys the natural beauty of beaches. According to the 2021 unep sargassum white paper, caribbean territories can receive as much as 100 metric tonnes of sargassum per kilometre of beach per day during an.