Shitang's sweet smell of environmental success

Shitang village in Nanjing, the capital of Jiangsu province, is surrounded by forests and streams, and is home to more than 100 "happy farms" and 40 small hotels.

But five years ago, the residents were mostly elderly people and left-behind children after their parents moved to China's major cities to work.

In 2012, Xu Hongyan, who was 24, along with other young workers returned to the village to set up a tourism business.