Related topics: cholera

Andean farmers use age-old technique amid climate change

From the sky, they look like huge, circular patterns made by aliens—but in fact, they are an age-old technique farmers have brought back to fight the climate crisis on the Andean plateaus of Puno.

Researchers discover one of the world's darkest rivers

When the researchers came upon the Ruki River, they were quite taken aback. The water in this river, a tributary of the mighty Congo River, is so dark that you literally can't see your hand in front of your face. "We were ...

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