Meet the bravest man in Mexico, chief sewage diver Julio, who has spent the last 30 years doing one of the world's dirtiest jobs...

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Generation Earth (2012)
The spectacular story of how we have redesigned our planet to build the modern world. Dallas Campbell explores our most ambitious creations, joining the people who have made the impossible, possible. Villages in China have been transformed into cities of millions, the tallest building in the world dwarfs the skyscrapers of America, and we have built a dam so big that it has changed the rotation of the planet.

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