Exhaust

The barriers should also reduce traffic noise, plus they could be used as a scaffolding for greenery

Environment

Study suggests roadside barriers could deflect harmful exhaust

There are currently many projects aimed at reducing the air pollution emitted in automobile exhaust, but in the meantime couldn't we just … redirect that exhaust? A new study suggests a possible means of doing so.

The sensor incorporates a tiny tuning fork

Environment

Roadside sensor designed to catch air-polluting vehicles

We already have devices which detect vehicles that are exceeding the speed limit, or that are too noisy. Now, scientists are working on an unmanned sensor that could be used to sniff out automobiles that are emitting overly-dirty exhaust.

AirInk markers are being made in a variety of sizes

Environment

When life gives you auto exhaust, make ink

There's a lot of carbon in automobile exhaust. Carbon is also used as a pigment in black ink. The guys at Singapore-based Graviky Labs have combined the one with the other, by harvesting carbon from vehicles' tailpipes to make their own eco-friendly AirInk.