As humankind continues to impose the most acute damage to the environment in history, it has become urgent for the international community to coordinate the relation between development and environment.
Ecological systems provide the material foundation for human subsistence and development.
According to the statistics issued by, the United Nations Environment Program. At present, about 900 million people in the world are living in places where the density of harmful emissions into in the atmosphere is excessive and hazardous to health. Over one billion people live where the air then, breath contains excessive and unhealthy levels of particulate matter. Twenty-eight countries have been identified as facing water shortages,and some one billion people drink water that falls far short of health standards. As a result, there has been a significant increase in the incident of skin cancer.