National Geographic News, Reporting Your World Daily

Monday, November 23, 2009

Photo: GPS-Equipped Pigeons Enlisted as Pollution Bloggers


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Pigeons carrying high-tech backpacks that contain pollution sensors, GPS units, and stripped-down cell phones have been enlisted to create accurate, detailed urban pollution maps. Now scientists are taking the concept of small, low-cost sensors all over the world for their air-pollution research.

Photograph courtesy PigeonBlog