In especially arid regions around the world, people are looking for an opportunity to extract water. Some live off water dissolved in the air, creating fluid from the fog. You can read more about these incredible technologies.
Seeker
When Abel Cruz was still a boy, he had to walk every day for more than an hour to collect water from a nearby source and take her home. Then he realized that during the rainy season moisture accumulates in banana leaves. “When we noticed this, we built natural canals from the leaves into which water collected, ” he says. “The first drops were a bit dirty and dusty, so we used the resulting liquid to wash the dishes.” However, the leaves lasted only about two weeks. Then Abel cut the bamboo in half and replaced them with leaves. He served much longer. So the boy first started collecting water.
Now that he has grown, the task has become more complicated - he is collecting fog. With large sheets of mesh stretched over the hillsides, thick fog can be collected that drifts through the arid Peruvian landscape. Tiny droplets condense on the grid and drip down into pipes, which in turn send water to containers. There it can be used for irrigation of crops or as drinking water.
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Foggy network
Each network can bring people from 200 to 400 liters of fresh water daily, providing a new source of life-giving fluid for local communities that have never had easy access to it. Cruz helped set up more than 2, 000 such fog traps in eight villages in Peru, as well as in Bolivia, Colombia and Mexico. The consequences of his act were very impressive.
“Families have grown to grow figs, grapes, and olives in places where they have never heard of them, ” says Abel. Now, from arid places, these villages have turned into a paradise for agriculture. “In my native village, one person raises 1, 000 chickens only through a fog trap. His life has changed radically. It's just unbelievable, ”he says.
Lima, built in the desert on the Pacific coast of Peru, is one of the driest metropolitan regions in the world. In a metropolis that is home to more than 10 million people, less than an inch of rain falls each year. Residents are very dependent on rivers, which are very changeable. They feed on glaciers high in the Andes and groundwater buried beneath the city.
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Valuable resource
If the inhabitants of Lima can still somehow cope with the drought, then the inhabitants of the surrounding regions are much worse. They are delivered water by truck. For those who live in villages, this is a valuable resource, both literally and figuratively. About 40 liters are needed per person per day, but people cannot afford it.
However, the uniqueness of Lima's climate lies in the fact that most of the year it is shrouded in dense fog due to the hot coastal air, which mixes with the cool and humid winds from the Pacific Ocean. Thick fogs most often appear between April and September.
The only problem remains is how to get this water from the air in such quantity that would satisfy the interests of local residents. Cruz teamed up with scientists who tested fog networks in other parts of the world and began to build them on the hillsides around Lima, thereby providing residents with a ready supply of water.
