“Reduce, reuse, recycle” is one of those unforgettable chants. It makes its way into our brains and can affect our actions in the real world. All of us would readily admit we’d like to reduce waste.

Museum of Graffiti announces the opening of a novel exhibition presenting art works created with air pollution. The exhibit, entitled Reduce, Reuse, Remix: Graffiti Art for a Better Earth will open on ...