Atlantic’s Giant Brown Ribbon: A Planet‑Scale Warning Unfurling Across the Ocean
A continent‑length ribbon of brown seaweed, stretching over 8,800 km from West Africa to the Gulf of Mexico, has formed across the Atlantic — the largest Great Atlantic Sargassum Belt ever observed. Scientists estimate its mass at over 37 million tonnes in 2025, dwarfing previous records. Sargassum once existed in relatively balanced patches that supported fish nurseries […]
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