Over the last decade artists have begun to experiment with "reverse pollution" techniques, such as reverse graffiti, which focuses on cleaning environmental surfaces. Having recently been introduced to the works of Moose, the artist known for inventing the reverse graffiti technique, the authors decided to design a curriculum to increase student awareness of ecological issues. Hoping to inspire students to become agents of change through art, the activity encourages students to investigate the adverse effects of pollution, reflect upon how their actions impact the Earth, and engage in ecologically friendly art making practices. This article examines ecological art and "reverse pollution," and presents a lesson idea that expands upon the traditional reductive art process by using reverse graffiti to "clean" dirty surfaces such as cars, sidewalks, windows, or walls, transforming them into public pieces of ecological art.