A community worker (R) helps a resident with garbage sorting in Beijing, capital of China, May 2, 2020. Beijing on Friday began to carry out mandatory garbage sorting in new efforts to protect the environment. [Photo/Xinhua]

Urban management workers inspect garbage sorting work at a restaurant in Beijing, capital of China, May 2, 2020. Beijing on Friday began to carry out mandatory garbage sorting in new efforts to protect the environment. [Photo/Xinhua]

A volunteer (front L) helps a resident with garbage sorting in Beijing, capital of China, May 2, 2020. Beijing on Friday began to carry out mandatory garbage sorting in new efforts to protect the environment. [Photo/Xinhua]

A community worker cleans near garbage bins in Beijing, capital of China, May 2, 2020. Beijing on Friday began to carry out mandatory garbage sorting in new efforts to protect the environment. [Photo/Xinhua]