Scientists finally discover what’s fueling massive sargassum blooms

ScienceDaily
Nov 19, 2025, 3:56 am34 pts
Massive Sargassum blooms sweeping across the Caribbean and Atlantic are fueled by a powerful nutrient partnership: phosphorus pulled to the surface by equatorial upwelling and nitrogen supplied by cyanobacteria living directly on the drifting algae. Coral cores reveal that this nutrient engine has intensified…

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