A visitor walks past sorting garbage cans made by paper at the United Nations Climate Change Conference COP25 in Madrid, Spain, Dec. 11, 2019. With "Time for Action" as its motto, the event held at Madrid's IFEMA exhibition center will last till Dec. 13. (Xinhua/Lu Yang)
UN climate change conference held in Madrid
Source: Xinhua| 2019-12-13 07:53:38|Editor: Wang Yamei