Earth Talk: What are the environmental pros and cons of GPS apps?

GPS nav apps may be good for individual drivers' commute times, but they may also be slowing traffic overall and ruining neighbourhood vibes across the nation. — Dreamstime/TNS

Dear EarthTalk: What are the environmental pros and cons of so many of us relying on GPS apps (Waze, Google Maps, etc.) to get around these days?

— B. Rogers, Newark, New Jersey