London Birds with Backpacks Measure Pollution

Six brave pigeons from the Pigeon Air Patrol are taking flight with air quality sensors and GPS trackers to measure levels of nitrogen dioxide and other toxic compounds. Read more

Brian Pigeon comments: "WTF? Yet again we’re forced to take to the skies wearing backpacks in order to test the air. You’re kidding, right? Bang out of order. Volunteers my arse."