These look just like billboards so I am sure the creative talent within the ad industry will not take long to see these pollution absorbing, data collecting towers as perfect opportunities for sponsorship and advertising.

Clever creatives can use the greenery to show corporate logos and/or messages and everyone benefits.

In time, every bus shelter could be a 'City Tree' and planning laws could be passed for new developments to incorporate pollution-eating green walls.

The challenge for the creative industry is how to build upon these innovations and help create a long-lasting positive impact on the environment.