Reverse Graffiti...this is ill

Alexandre Orion scours the streets of Sao Paulo in an effort to clean city property. This was a two week project where the artist selectively scrubbed soot from a tunnel to create an image of a cemetary of skulls. "I wanted to bring a catacomb from the near future to the present, to show people that the tragedy of pollution is happening right now. I try to remind people of things they are trying to forget.”
Though he his “cleaning up,” the police are not the most cooperative and he has been held up by gunpoint several times.