Report: Pollution Causes More Deaths Than War, Smoking Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A Pace College student in a gas mask "smells" a magnolia blossom in City Hall Park on Earth Day, April 22, 1970, in New York. ( AP / Associated Press ) Produced by Isabel Angell Produced by PRI and WNYC