Graffiti are one of the most controversial phenomena that characterize the urban environment. Street art for somebody, vandalism for somebody else, they continue to be a big argument of debate.

In this debate, Green Graffiti adds a new and different point of view. As a form of viral marketing, they make graffiti with high-pressure water on dirty wall and streets, and their drawings appear like clean areas on the dirty surface of the wall. And after some weeks, they pass on the same wall again, and with the same technique they clean the rest of the wall.

(source: springwise)