A community group in Hamburg, Germany tried a new solution to spread awareness with public peeing. St. Pauli is a popular nightlife district, and the neighborhood was tired of partiers peeing in their streets. Fines didn’t help. So the group bought Ultra Ever-Dry, a hydrophobic coating that creates high points on a surface which forcefully repel liquids — in this case, directing urine back onto a person.

With help of the spotted places in the above maps, the walls from these areas could be painted with these special paints and the painting could be an awareness of being publicly drunk and the outcomes. 

Additionally, walls could also be painted heat maps showing the affected areas and a blank map for people to mark these as well as various other low profile crimes happening in the locality.

This way, people will be aware of gradually we are contaminating the city and at the same time help gather data. 

COST: The paint is a fairly cheap, costing a few hundred dollars per wall.