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Meet the sargassum belt, a 5,000-mile-long snake of seaweed circling Florida

02:29
People remove Sargassum in Playa del Carmen, Mexico, in April, 2022. Researchers expect this year will bring another massive bloom, choking local ecosystems and tourism economies. (AFP via Getty Images)
People remove Sargassum in Playa del Carmen, Mexico, in April, 2022. Researchers expect this year will bring another massive bloom, choking local ecosystems and tourism economies. (AFP via Getty Images)

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