Finally, a Billboard That Creates Drinkable Water Out of Thin Air I've never cared much for billboards. Not in the city, not out of the city — not anywhere, really. It's like the saying in that old Five Man Electrical Band song. So when the creative director of an ad agency in Peru sent me a picture of what he claimed was the first billboard that produces potable water from air, my initial reaction was: gotta be a hoax, or at best, a gimmick. Except it's neither: The billboard pictured here is real, it's located in Lima, Peru, and it produces around 100 liters of water a day (about 26 gallons) from nothing more than humidity, a basic filtration system and a little gravitational ingenuity. Let's talk about Lima for a moment, the largest city in Peru and the fifth largest in all of the Americas, with some 7.6 million people (closer to 9 million when you factor in the surrounding metro area). Because it sits along the southern Pacific Ocean, the humidity in the city ...
