Chen Liwen, 36, who completed a two-year overseas research tour about garbage sorting in the U.S. and Canada, has transplanted her waste sorting career to the village of Nanyu in Baoding, a city in north China's Hebei Province.

Thanks to patient instructions from Chen, local villagers have proactively engaged in garbage sorting. Now, the village is equipped with specially-designed garbage cans and delivery vehicles, which enable the transportation of daily waste to different destinations.