"Reverse Graffiti" Artist Illustrates How Dirty Our Cities Really Are

Grist profiles a British street artist who specializes in creating images on dirty urban spaces (like tunnel walls) by simply washing away the grime.

1 minute read

November 5, 2011, 11:00 AM PDT

By Michael Dudley


The images Curtis creates may be beautiful, but they hide an ugly truth: the walls, tunnels and other surfaces he uses for a canvas are layered in pollutants. As Greg Hanscom writes,

"Street artist Paul Curtis, better known as 'Moose,'...doesn't use spray paint or wallpaper paste -- the usual tools of this trade. Instead, he wields scrub brushes, old socks, cleaning fluid, and, when he's living large, a high-pressure hose. He creates images by cleaning shapes into filthy urban surfaces such as retaining walls, signs, and tunnels. People have called it 'reverse graffiti,' 'clean graffiti,' and 'negative space.'

He is fond of carving the forms of flowers and trees onto dirty surfaces, adding organic forms, as delicate as paper cutouts, to the hard edges of the urban landscape. 'The environmental message [in my art] is unavoidable,' he says. 'I'm writing in grime.'"

Friday, November 4, 2011 in Grist

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I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

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