Earth day is every year on April 22, is a worldwide environmental movement. The first earth day activities were rising in the 1970 s in the United States campus environmental movement, this activity towards the world from the United States in the 1990 s, became a worldwide festival of environmentalists and environmental protection awareness day, on this day people of different nationality in their different way to promote and practice the concept of environmental protection.

　　The first earth day selection in the vernal equinox solar terms, it was a day in the world any corner of the equal length in both day and night, the sun can shine in the South Pole and North Pole at the same time, it represents the equality of the world, but also a symbol of the human to throw controversy and different between each other, harmonious coexistence. In many countries have traditionally celebrate the spring equinox solar term tradition. The United Nations has early in earth day activities every year at the vernal equinox. Earth day the day

　　"Earth day" one day, the United States without the country about 100 million people in the car home, in case of vehicle emission of waste gas and other harmful emissions into the air. In China, the then prime minister li peng on April 21, to address the environmental problems through the television, CCTV also played the "only one earth" special report. From now on, our country every year for the earth day "campaign.

　　In late February 2000, hayes to accept the invitation of the China, to come to China to participate in the "China" earth day "in 2000 China's action" to start the ceremony.

　　In the late 1990 s, the gaylord nelson and brookings Anderson (solar architect, author and New Hampshire "earth day" organizers) for the "earth day" make an annual state, high level of activity, set up "the earth". "Earth day" web site opened in 1995. "The earth" organization in 1999 changed its name to "earth day network," become a geared to the needs of the world, promoting "earth day" every year international activities of the organization. "Earth day" in 2000, is by the gallo nelson and Dennis hayes, leadership, the difference is that this time they, on the basis of "earth day" in 1970, joined the global public sports, and make full use of the network this emerging information means, the wisdom and passion of people of all countries together. In gaylord nelson, Dennis hayes and his comrades, today's "earth day" has really become a whole earth festival, reminding human to protect the earth, be gentle with the earth.

　　世界地球日即每年的4月22日，是一項世界性的環境保護運動。最早的地球日活動是1970年代于美國校園興起的環保運動，1990年代這項活動從美國走向世界，成為全世界環保主義者的節日和環境保護宣傳日，在這天不同國籍的人們以各自不同的方式宣傳和實踐環境保護的觀念。

　　最初的地球日選擇在春分節氣，這一天在全世界的任何一個角落晝夜時長均相等，陽光可以同時照耀在南極點和北極點上，這代表了世界的平等，同時也象征著人類要拋開彼此間的爭議和不同，和諧共存。傳統上在很多國家都有慶祝春分節氣的傳統。早期聯合國也在每年的春分舉行世界地球日的活動。地球日當天表現

　　“地球日”這天，美國全國大約有1億人把汽車放在家里不用，以防汽車排放出來的廢氣和其他有害的排放物散發到空氣中去。在中國，當時的李鵬總理在4月21日通過電視發表了環境問題講話，中央電視臺還播放了“只有一個地球”的專題報道。從此，我國每年都進行“地球日”的紀念宣傳活動。

　　2000年2月末，海斯接受中國的邀請，來中國參加了“中國2000年‘地球日’中國行動”啟動儀式。

　　在20世紀90年代末，蓋洛•尼爾森和布魯司•安德森(太陽能建筑師、作家、新罕布什爾州“地球日”組織者)共同為把“地球日”辦成一個年度性、高水準的活動，創辦了“美國地球日”組織。“地球日”網頁于1995年開通。1999年“美國地球日”組織更名為“地球日網絡”，成為一個面向全世界、推動每年“地球日”國際活動的組織。2000年的“地球日”，又是由蓋洛•尼爾森和丹尼斯•海斯領導，所不同的是，這次他們在1970年“地球日”的基礎上，加入了全球性的公眾運動，并充分利用了網絡這一新興的信息手段，把各國人民的智慧和熱情都聚集在了一起。在蓋洛•尼爾森、丹尼斯•海斯和其戰友們的努力下，今天的“地球日”已真正成為全地球的節日，提醒著人類保護地球、善待地球。