How Pigeons Are Keeping Track Of London's Air Pollution Problem - Newsy

Transcript: Pigeons are monitoring the air quality in London. Yes, pigeons. Ten of the birds, dubbed the Pigeon Air Patrol, were equipped with tiny pollution-detecting backpacks. And those backpacks check for nitrogen dioxide created by diesel cars, buses and trucks. The pigeons' findings are being live-tweeted as they map pollution levels at different points around the city. As of Tuesday morning, most of the city seemed to be at a “moderate“ level of pollution. The companies behind Pigeon Patrol aren't h