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Rio Favela Takes Lead With Green Solution Amid Infrastructure Shortfall

A small slum in the midst of Rio de Janeiro's scenic Tijuca Forest has set up its own biosytem project for waste and sewerage treatment in a drive to make the Brazilian city's poorest areas more sustainable. Vale Encantado, which means "Enchanted Valley, installed a biodigester with the help of a local university to generate cooking gas for some of the favela's 25 homes and for a local eco-tourism cooperative. "We are the first community to set up a sewerage...

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