A volunteer from Nantong University teaches kids how to sort rubbish at a kindergarten in Chongchuan district, Nantong, in eastern Jiangsu province, on July 5. A drive to learn about garbage classification is moving across the country, since Shanghai became the first city to enforce its strictest-ever refuse regulations on July 1. [Photo/chongchuan.gov.cn]

A boy practices sorting garbage at the activity in Chongchuan district, in Nantong, on July 5. [Photo/chongchuan.gov.cn]