Hong Kong, China - In shadows cast by streetlights in the pre-dawn hours, a diminutive figure shuffles along, hunched over a cart. She stoops to pick up a discarded piece of cardboard. Other people's rubbish is much-needed income for her. This is how Fok Po Po starts the day, seven days a week, in Hong Kong's stifling humidity, torrential rain and epic thunderstorms. Fok Po Po - or "grandma" in Cantonese - is 66. She's worked hard all her life and invested in a retirement fund. But in Hong Kong, one of the world's most expensive cities, Fok Po Po is one of a growing number of elderly people resorting to collecting rubbish to survive. In this city of seven million people, where more Rolls-Royces roam the roads than anywhere else on earth, about one third of residents aged over 65 live in poverty. They are the face of Hong Kong's

And that's the downside of modern civilization. People are uprooted from villages to cities and in the process, cut off from preexisting traditional social welfare systems.