For a Canadian family living in Beijing, putting on face-masks to guard against smog is part of the morning routine. In China, air pollution causes more than 3,000 premature deaths every day. And cities across Asia and Europe - including London and Paris - now have to ban downtown traffic to manage their "Airpocalypse" days. But what about here at home? The answer may not be as reassuring as we would like.

From the Curio.ca streaming audio-visual collection.