Alexandre Orion is a Brazilian artist. He’s making graffiti art on public walls, but police just can’t arrest him because he’s doing the reverse graffiti art. Instead of using paint, he makes the graffiti art by removing the ‘dirt on the wall due to air pollution. After finishing his art, he keeps the dirt from the fabric (used for the graffiti art) and brought back home to make paintings ~ ‘recycling the pollution.