Earth Day first appeared in 1970. Earth Day first appeared in April 1970. Gaylord Nelson was the first person to mention holding Earth Day. He gave a lecture at 1969, and planned to organize a campus movement with the theme of opposing the Vietnam War on April 22nd of the following year. However, at the preparatory meeting held in Seattle on 1969, one of the organizers, dennis hayes, a student of Harvard Law School, proposed to position the movement as a grassroots movement with the theme of national environmental protection.

Impact of Earth Day activities:

1990 "Earth Day" commemorates the 20th anniversary of "Earth Day", carries out activities to pick up waste paper and plastic bags, and prohibits littering anywhere. The purpose of these activities is to remind people to pay attention to protecting the earth's environment, stop ecological deterioration, and let every resident on the earth contribute to defending and improving the earth's environment. Wearing blue and green clothes is a sign of determination to take action to protect the earth's environment.