Urban Sanitation in India: Past, Present, and Future - Image 1 of 6

Urban Sanitation in India: Past, Present, and Future - Image 2 of 6

Urban Sanitation in India: Past, Present, and Future - Image 3 of 6

Urban Sanitation in India: Past, Present, and Future - Image 4 of 6

Urban Sanitation in India: Past, Present, and Future - Image 5 of 6

Urban Sanitation in India: Past, Present, and Future - Image 6 of 6

Urban Sanitation in India: Past, Present, and Future

SPARK Architects' 3D Printed "Big Arse Toilet" Transforms Waste into Energy in India. Image Courtesy of SPARK Architects

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