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Growing lettuce with fog in Chile's Atacama desert, the world's driest.

Growing lettuce with fog in Chile's Atacama desert, the world's driest.

Researchers and growers in Chile's Atacama desert, the driest place on earth, are trying to capture moisture from fog to grow lemons and lettuces. They use a net that catches the drops.

Near Chanaral, in the Atacama desert, where there are areas that have not seen rain for years, Orlando Rojas told reporters, "We grow hydroponic lettuce completely with fog water."

"We've tried other crops and they didn't work, so we tended to do lettuce."

Researchers at the UC Atacama Desert Center have launched a web-based mapping tool that allows anyone to see the locations of areas in the country with the potential to harvest fog-water. They are trying to cultivate these arid regions.

Camilo Del Rio is the director of UC Atacama Desert Center. He said, "We know that it has a lot of potential. We know that we can use it as a solution and an option for different water needs on different scales in different areas where there are significant water shortages."

The system is used to collect and store water in tanks in the midst of barren, rocky hills, and white, dry sand. A mesh is suspended between two poles and it intercepts the moisture in the air.

Rojas said that the water collected from this region was also being used to grow lemon trees.

This water resource is the source of life. We haven't stopped since we first learned about the project. It is essential for human survival."

Mario Segovia from the fog-catching team also said that the collected water from moisture in air is pure.

He said, "The harvest looks good, it is a super-healthy food, with pure organic nutrients." They're in water with nutrients because fog-catcher water has no chlorine or minerals. (Reporting and writing by Rodrigo Gutierrez, editing by Nia William)

(source: Reuters)