Drinking Water Out of Air

In Bujama, a small village in Peru where some residents have no access to a clean water supply, there is a billboard that can create drinking water from humidity in the air.
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This billboard does not only meet its advertising purpose, it is also intended to inspire young people to study engineering and solve social needs. Of course there is always negative feedback like the cost and many other political concerns. But I would rather see it in a positive way, and simply appreciate the clever idea and the beautiful outcome it created.