Rising concerns about air quality are driving innovative solutions worldwide. One of the best examples of this can be seen in the lights that are displayed on the Namsan Seoultower. Located at the heart of Seoul with a height of over 240 meters, the tower can easily be spotted by those even in the furthest vicinities of the capital. While it may initially seem like the colours are randomly displayed, they serve a much bigger purpose. The tower’s lights serve as a visual air quality monitori...
