China on Friday vowed all-out efforts to promote household garbage sorting nationwide. The country will invest 21.3 billion yuan (3.1 billion US dollars) in the construction of garbage processing facilities to meet demand, Zhang Lequn, an official with the Ministry of Housing and Urban-Rural Development, told a press conference. (Photos: Xinhua)

A volunteer demonstrates putting a kitchen waste carrier back to a collecting shelf in Beijing, capital of China, June 29, 2019.

A volunteer helps a local resident paste her name on a kitchen waste carrier in Beijing, capital of China, June 29, 2019.

Volunteers explain to local residents about how to use kitchen waste carriers in Shanghai, east China, June 29, 2019.