Even if it's all done perfectly, it can still be challenging to get a clear idea of an entire city's air quality. This is where the Internet of Things (IoT) comes in.

Graphic showing Internet of Things news. Honeywell acquires Sine to take its Honeywell Forge platform mobile: Industrial giant Honeywell said it has ...

This enables people to stay connected while traveling and allows machines to form a quasi-society of their own known as the internet of things (IoT).