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Andean farmers use age-old technique amid climate change
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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. On the border of Peru and Bolivia, the Waru Waru — an indigenous Quechua word that means ridge —...