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Sargassum

Why Beaches Are Swamped With Sargassum, the Stinky Seaweed Menace

It smells like rotten eggs, releases toxic gases, endangers sea life and scuttles vacations. Scientists, startups and communities are trying to figure out what to do with it all.

Interview by Aynsley O’Neill, Living on Earth

A worker removes sargassum from the shore of Playa del Carmen Beach in Quintana Roo, Mexico, on June 18, 2025. Credit: Elizabeth Ruiz/AFP via Getty Images
Massive blooms of the seaweed began inundating Caribbean shorelines in 2011.

After 13 Years, No End in Sight for Caribbean Sargassum Invasion

By Freeman Rogers/The BVI Beacon, Olivia Losbar/RCI Guadeloupe, Maria Monsalve/El País, Krista Campbell/Television Jamaica, Suzanne Carlson/The Virgin Islands Daily News, Centro de Periodismo Investigativo

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