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Sargassum Blooms: A Billion-Dollar Coastal Threat
16 Jan
Summary
- Massive sargassum blooms cause millions to billions in annual economic damage.
- Blooms originate in the Atlantic, affecting Florida, Puerto Rico, and USVI.
- Seaweed releases toxic gases and leaches heavy metals, harming health.

Massive sargassum seaweed blooms are causing significant economic distress to U.S. coastal communities, with annual damages ranging from millions to as much as a billion dollars. Researchers from the Woods Hole Oceanographic Institution and the University of Rhode Island have quantified these costs, highlighting the financial burden on governments and industries. The blooms, originating from the Great Atlantic Sargassum Belt, predominantly impact regions such as Southeast Florida, Puerto Rico, and the U.S. Virgin Islands.



