Protecting the natural environment is of great significance to human health and quality of life.

Environmental protection is to study and prevent the deterioration of the natural environment due to human life, production and construction activities, and then seek to control, control and eliminate the pollution and destruction of various factors to the environment, and strive to improve, beautify and protect the environment to better meet the needs of human life and work. In other words, environmental protection is to use the theories and methods of environmental science to make better use of natural resources, at the same time, to deeply understand the root causes and harms of pollution and destruction of the environment, to protect the environment in a planned way, to prevent the deterioration of environmental quality, to control environmental pollution, to promote the coordinated development of human beings and the environment, to improve the quality of human life, to protect human health and to benefit future generations. People live in the natural environment, which is the basic condition for human survival and the material source for developing production and prospering economy. Without the vast natural environment of the earth, it is impossible for human beings to survive and reproduce. With the rapid growth of population, the development of productivity and the rapid development of science and technology, the waste discharged from industry and life is increasing day by day, which makes the pollution of atmosphere, water quality and soil increasingly serious, the natural ecological balance has been severely impacted and destroyed, and many resources are decreasing day by day and are in danger of exhaustion. Soil erosion and land desertification are becoming more and more serious, and food production and human health are seriously threatened. Therefore, maintaining ecological balance and protecting the environment are fundamental issues related to human survival and social development.