It is 42 degrees Celsius, there has not been any rain for weeks, and the risk of a wildfire is severe. In this dusty corner of southeastern Spain in August, the grass has turned yellow, and fields of cereals are perishing in the heat after months without rain. Walking along the road, it feels as if your skin is burning in the heat.
But on the outskirts of Ribarroja, a small town near Valencia, there is an unusual line of defense against a possible blaze. Looming above the trees near the edge of the town is a series of huge green towers that resemble streetlights. They act as mammoth water
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