Zheng Hanjiang, vice president of Qijiang University who focuses on academic research, was appointed to Qijiang as the deputy mayor in charge of environmental protection issues. Faced with the severe environmental situation and complex interests in Qijiang, Zheng Hanjiang united the team in the face of numerous obstacles, overcame problems such as slag landfill, air pollution, and water pollution, and successfully found a balance between environmental protection and economic development in the foggy vortex of power and interests. He promoted the people's happy life with the development of environmental protection, and truly put "Green water and green mountains are gold and silver mountains" into practice.