Mexico cleaned over 100K tons of sargassum at the beginning of 2026, but is still facing a seaweed crisis due to the invasive species deeply impacting its tourism

A vast belt of brown seaweed is stretching across the Atlantic Ocean, from the coast of West Africa to the Gulf of Mexico, creating a phenomenon so extensive that it can be tracked from space. Known as the Great Atlantic Sargassum Belt (GASB), it has reached extraordinary proportions in 2026, about 5,000 miles in length.

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