Biologists Kai Tiedemann and Anne Lummerich are finding ingenious ways to help people living in arid regions find and develop new sources of water. Bellavista, a small, hillside settlement near Lima, Peru that is unconnected to the municipal water supply is enveloped in fog through most of the winter. There, the pair designed a fog-catching system that captures and collects fog-water for use by the local population. Built in 2006 by members of the community, the system delivers hundreds of gallons a day to its resevoir during the foggy winter months.
(via National Geographic, photograph by Anne Lummerich)