Conservationists Kai Tiedemann and Anne Lummerich have helped the residents of Bellavista, Peru, plant 800 new river she-oak trees, such as those seen above, with water collected from fog-catching nets.

The young trees also serve as natural fog catchers--their branches take moisture from the air that helps to irrigate other plants. Snaking between the trees is a channel for the fog water the trees generate, made of tiles taken from a trash heap.