Here is a great idea that we’ve talked about before. More and more innovation companies around the world are working to curb the amount of air pollution – smog – that expose people to harmful toxins that can lead to lung disease.

A massive billboard has been created by  Lima, Peru–based engineering college UTEC. Last year, the college focused on solving Lima’s rainfall shortage, and came up with a billboard that creates water by sucking it from the city’s super-humid air.  Here’s what this technology can do:

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