Key Facts about Sargassum:
It stinks and it attracts bugs
Ecological Role: In the open ocean, particularly in the Sargasso Sea (the only sea without land boundaries), Sargassum forms a vital floating ecosystem that provides habitat for sea turtles, eels, shrimp, and fish.
Current Crisis: In recent years, massive blooms have occurred in the Great Atlantic Sargassum Belt, stretching from West Africa to the Gulf of Mexico.
Impact: When washed ashore in large quantities, the rotting seaweed releases hydrogen sulfide gas (smelling like rotten eggs), which harms public health, kills wildlife, and devastates tourism and fishing economies in the Caribbean and Florida.
2026 Status: Satellite data indicates that 2026 is on track to be one of the worst years on record, with record tons of seaweed already smothering Caribbean beaches and drifting into the Gulf.