Dianchi Lake gets big clean up
China has speeded up pollution control in the Dianchi Lake, the sixth largest of China's fresh water lakes in southwestern Yunnan Province, to welcome the World Horticulture Exposition, which takes
China has speeded up pollution control in the Dianchi Lake, the sixth largest of China's fresh water lakes in southwestern Yunnan Province, to welcome the World Horticulture Exposition, which takes