The "Earth Day" activity on April 22, 1970 was the first time that the history of mankind has been a large-scale mass environmental protection campaign. As the beginning of modern human environmental protection movement, it has promoted the establishment of environmental regulations in Western countries. For example, the United States successively introduced regulations such as the Clean Air Act, the Clean Water Act, and the Endangered Animals Protection Act. The Earth Day of 1970 also contributed to the establishment of the National Environmental Protection Agency of the United States, and to a certain extent contributed to the 1972 United Nations First Humanity. The holding of the environmental conference in Stockholm strongly promoted the development of environmental protection in the world. The establishment of the United Nations Environment Programme in 1973, the creation of an international environmental organization, Greenpeace, and the inaction of government agencies and organizations that protect the environment around the world were the first large-scale mass environmental protection campaigns in the world. This movement catalyzed the development of modern human environmental protection movements, promoted the process of developing national environmental protection legislation, and gave birth directly to the 1972 United Nations First Human Environment Conference. Dennis Hayes, the organizer of the 1970 event, was also called the father of Earth Day. The success of the campaign made it an established practice to organize environmental activities on April 22 each year. The name Earth Day also moved from the Equinox Day to April 22, and the theme of Earth Day turned toward the trend. Environmental protection.
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