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Huge algal mat spanning an ocean is visible from space

Sargassum algae off Big Pine Key in the lower Florida Keys

The ‘great Atlantic Sargassum belt’ is a monstrous seaweed patch that stretches from the Gulf of Mexico (above, near the Florida Keys) to West Africa. Credit: Brian Lapointe/Florida Atlantic University

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Nature 571, 148 (2019)

doi: https://doi.org/10.1038/d41586-019-02080-y

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