A large amount of Lima's population obtains their drinking water from wells. Wells that can get polluted. This is not anything new. Throughout the United States we have wells closing because they have become so polluted, the water is undrinkable.
The city of Lima receives very little rain, yet the air about the city has an atmospheric humidity level of 98% most of the time. So the University of Engineering and Technology in Peru teamed up with a marketing agency called Mayo DraftFCB and they built and installed a billboard with an advanced water harvesting feature. The system not only harvests water, but also has a filtration system that creates up to 96 liters (over 25 gallons) of drinkable water each and every day.
To advertise the University's engineering and technology accomplishment! Video below:
Bill Lauto, GTG