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Record Sargassum Bloom Threatens Coastal Environments, Tourism

3/3/2026

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Summary

Story summary

A massive sargassum bloom, estimated at 9.5 million tons, stretches from the Gulf of Mexico to the western Atlantic.
Researchers from the University of South Florida say 2026 will be another major year for sargassum.
On beaches, the seaweed poses problems when it accumulates due to decay releasing hydrogen sulfide.
The Great Atlantic Sargassum Belt has reached record levels, affecting coastal environments and tourism.

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Story summary

A massive sargassum bloom, estimated at 9.5 million tons, stretches from the Gulf of Mexico to the western Atlantic.
Researchers from the University of South Florida say 2026 will be another major year for sargassum.
On beaches, the seaweed poses problems when it accumulates due to decay releasing hydrogen sulfide.
The Great Atlantic Sargassum Belt has reached record levels, affecting coastal environments and tourism.