Swans fly over the Sanmenxia Swan Lake State Urban Wetland Park in Sanmenxia City, central China's Henan Province, Feb. 20, 2019. China has adopted the vision that lucid waters and lush mountains are invaluable assets and pursued a holistic approach to conserving its mountains, rivers, forests, farmlands, lakes, and grasslands. At the very highest levels, China is driving the way forward in the construction of an ecological civilization. (Xinhua/Li Jianan)