Water is at the heart of climate change. As the world continues to transform, water, in one way or another, is significantly related to the resulting effects. For example, water levels of our oceans and seas are expected to rise. Water contained in massive rainfall in the major storm systems that rage, fed by the cyclical effects of climate change’s higher temperatures that increase evaporation of water resources. And then there are the regions that will become deserts, lacking water entirely. How will these areas feed their populations? Will they have to be abandoned altogether? Thanks to some Star Wars inspiration, nope.
Remember how the people who live on Tatooine used “vaporators” to irrigate their desert farms? Guess what? That technology, imagined in the 70’s, is real in the here-and-now of 2017. Yep, the technology has been developed to literally make water appear out of thin air. Like magic!
Even the most arid desert has some humidity within its immediate atmosphere. The trick is in trapping and condensing those tiny particles of humidity. Today’s “vaporators” work on the same principle that takes place when droplets of water start sliding down your glass of iced tea.
That cold drink is cooling down the immediate atmosphere around the glass. When that happens, humidity within that tiny area is no longer trapped within the warmer air. It is free to attach itself to the surface of your glass. That’s also how rain is formed. So, in a sense, the “vaporators” of Star Wars are actually air conditioners, cooling the hot, desert air so water droplets form.
But it would seem like it would take an awful lot to produce enough water to be helpful. Is this technology even practical? Well, let’s take a look at what Chilean & Peruvian farmers are doing, who farm in the dry, arid regions of the high Andes. They have a steel mesh contraption, kind of like a net. Covered in a special coating to attract the molecules of water within the air, they basically harvest fog.
Is fog-catching making a difference? A single fog-catcher, about one-meter square, produces about 5 litres of water daily. An improved design hopes to up water collection to about a dozen litres daily. Either way, the technology being used has meant the difference between harvest success over crop failure for the artichokes, avocados and grapes commonly grown.
Even greater than creating water out of thin air, the technology is sustainable, portable and powered by nature. So don’t be surprised if the next big thing in agricultural areas are rows of tiny billboard looking thing-a-ma-jigs. But since you read with the Gringa, you’ll just shrug and say, “Hey, look. It’s a fog farm!”
Image Source: Design We Need
Video Source: Makeshift