Move your hands for fog

by Giulio Castelli

Fog is a fresh water resource. Despite, as humans, we cannot easily conceive the fact that these tiny water droplets carried by the wind can sustain life and human activities, trees, as well as the vegetation of arid areas, are showing us the way. It is not a mystery, in fact, that trees and forests located in arid areas can sustain themselves with fog collected by the atmosphere [1,2].

In early 90s, researchers and practitioners around the world started to test the use of a simple technology for providing water in arid areas through the collection of fog by the means of simple plastic meshes exposed to the advection and orographic fog carried by the wind [3,4].