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40 billion: The number of hours spent each year in Africa due to the need to collect and haul water

Kenyan villagers on low-lying Pate Island gather brackish drinking water from small holes in the sand, less than 300 feet from the ocean. More than 2 billion people around the world rely on wells for their water. Clean water has become an increasingly scarce resource as water tables continue to drop at an alarming rate.
Photograph by George Steinmetz