Should You Avoid Walking if the Air is Polluted?

Via Shutterstock

Via Shutterstock

At first glance, what we have here is a classic catch-22: People can’t walk (or bike) to work because of all the lung-clogging air pollution spewing from car tailpipes. But what do we need to do to slash that air pollution? Walk (or bike) to work! Short of convincing everyone in Anchorage to abandon their cars in one fell swoop, zombie apocalypse–style, it appears we’re stuck.

Or are we?

Find out over at Grist.

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