The Engineering Idea that United a City | BBC Earth Science

What do you do when roads are impossible to build? In Brazil's densely populated favelas, engineers found an unexpected answer in the skies. Discover how a cable car network transformed far more than the daily commute. Best of Earth Science: http://bit.ly/EarthLabOriginals Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx