BILLBOARD TURNS AIR INTO DRINKING WATER. Just outside Lima, Peru, a billboard provides drinking water to whoever needs it. The panel produces clean water from the humidity in the air, through filters. Researchers at the University of Engineering and Technology (UTEC) in Lima and advertising agency Mayo Peru DraftFCB joined forces to launch it. UTEC says it wanted to put imagination into action and show that it is possible to solve peoples problems through engineering and technology.