Mexico City has a stylish way to filter a city's worth of polluted air. These mesh structures are being constructed around a Mexico City hospital, and they were designed by the Berlin firm Elegant Embellishments. It tackles the smog in two ways - first using its design, and second, the wall's oddly shaped holes slow down wind and create turbulence to churn as much air as possible through the enormous filter.

A coating of titanium dioxide works to de-pollution the air. When it comes in contact with the smog, it breaks down the pollutants into simpler, harmless parts like calcium nitrate, carbon dioxide and water, leaving it fully intact to desmog every new breeze that comes in.

Sure, it's not entirely a great solution, but this kind of structure could be used in the future to deal with smog that's already out there. [Co.Exist]