India's most infamous slum lives up to its reputation. Located in the middle of vast Mumbai, Dharavi is home to as many as 1 million people densely packed into thousands of tiny shacks fashioned from scrap metal, plastic sheeting and other scrounged materials. Narrow, muddy alleys crisscross the 600-acre site, open sewers carry human waste and vacant lots serve as ...
Children scavenge for recyclables amid rubbish in the Dharavi slum in Mumbai, India. About a billion people worldwide live in slums — where sewer, water and garbage-collection services are often nonexistent. If impoverished rural residents continue streaming into cities at current rates, the world's slum population is expected to double to 2 billion within the next two decades, according to the United Nations.