Path out of poverty found on 'green trains'

At 6 am, Wang Yingxiang carefully boards a train, her hands full with four heavy kettles of hot water.

The steam from the spout fogs up the window of the old-fashioned "green-skinned train". She quickly gets to work. Her first task is to write information on the carriage's signboards.

The signboards advertise goods that passengers are selling. Many people sell products during their journey on the No 8361 train, which runs deep through the Qinling Mountains in Shaanxi province.