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The spongy creatures cleaning Zanzibar's oceans

Coastal communities like Jambiani in Zanzibar, Tanzania, have always relied on the ocean to survive. But climate change and rising water temperatures have made traditional fishing and seaweed production increasingly difficult. Now single mothers and divorced women in Zanzibar are learning to swim and farm a more profitable and resilient crop.

Video by Frank Papushka

Produced by Jeremy Riggall