An aerial drone photo shows a worker collecting floats on the water surface at Slender West Lake scenic spot in Yangzhou, east China's Jiangsu Province, March 22, 2026. The World Water Day falls on March 22. (Photo by Meng Delong/Xinhua)

An aerial drone photo shows workers collecting floats on the water surface at Slender West Lake scenic spot in Yangzhou, east China's Jiangsu Province, March 22, 2026. The World Water Day falls on March 22. (Photo by Meng Delong/Xinhua)

Workers clear weeds from the river on a mower boat in Nanyang, central China's Henan Province, March 22, 2026. The World Water Day falls on March 22. (Photo by Gao Song/Xinhua)

Young volunteers pick up garbage on a river bank in Shijiazhuang, north China's Hebei Province, March 22, 2026. The World Water Day falls on March 22. (Photo by Chen Qibao/Xinhua)

Workers and volunteers collect floats on the water surface in Meishan, southwest China's Sichuan Province, March 21, 2026. The World Water Day falls on March 22. (Photo by Yao Yongliang/Xinhua)

Volunteers collect garbage on a river bank in Shijiazhuang, north China's Hebei Province, March 22, 2026. The World Water Day falls on March 22. (Photo by Chen Qibao/Xinhua)