世界地球日即每年的4月22日，是一项世界性的环境保护运动。最早的地球日活动是1970年代于美国校园兴起的环保运动，1990年代这项活动从美国走向世界，成为全世界环保主义者的节日和环境保护宣传日，在这天不同国籍的人们以各自不同的方式宣传和实践环境保护的观念。
Earth Day is on April 22nd every year, is a worldwide environmental movement. The first Earth Day activities is the rise in the America campus 1970's environmental movement, the event in 1990 to the world from American, festivals and environmental protection publicity, has become the world's environmentalists, on this day the people of different nationalities in different way to promote and practice the concept of environmental protection.
最初的地球日选择在春分节气，这一天在全世界的任何一个角落昼夜时长均相等，阳光可以同时照耀在南极点和北极点上，这代表了世界的平等，同时也象征着人类要抛开彼此间的争议和不同，和谐共存。传统上在很多国家都有庆祝春分节气的传统。早期联合国也在每年的春分举行世界地球日的活动。地球日当天表现
The first Earth Day in spring equinox solar term, this day and night in any corner of the world are the same length, the sun can shine at the South Pole and the north pole, which represents the equity in the world, but also a symbol of human beings to put aside their disputes and differences, harmonious coexistence. Traditionally in many countries have the tradition to celebrate the vernal equinox solar term. Early United Nations World Earth Day activities held every year in the spring equinox. Earth Day
“地球日”这天，美国全国大约有1亿人把汽车放在家里不用，以防汽车排放出来的废气和其他有害的排放物散发到空气中去。在中国，当时的李鹏总理在4月21日通过电视发表了环境问题讲话，中央电视台还播放了“只有一个地球”的专题报道。从此，我国每年都进行“地球日”的纪念宣传活动。
Earth day, the country there are about 100000000 people left the car at home and use, to prevent the automobile exhaust and other harmful emissions emitted into the air. In China, when Premier Li Peng in April 21st published by television address environmental problems, CCTV also played "reports, only one earth". Since then, China's annual "Earth Day" to commemorate the promotional activities.
2000年2月末，海斯接受中国的邀请，来中国参加了“中国2000年‘地球日’中国行动”启动仪式。
At the end of 2000 2, Hays accepted the invitation of the China to come to China to participate in the "China 2000" Earth Day "action" to start the ceremony.
在20世纪90年代末，盖洛•尼尔森和布鲁司•安德森(太阳能建筑师、作家、新罕布什尔州“地球日”组织者)共同为把“地球日”办成一个年度性、高水准的活动，创办了“美国地球日”组织。“地球日”网页于1995年开通。1999年“美国地球日”组织更名为“地球日网络”，成为一个面向全世界、推动每年“地球日”国际活动的组织。2000年的“地球日”，又是由盖洛•尼尔森和丹尼斯•海斯领导，所不同的是，这次他们在1970年“地球日”的基础上，加入了全球性的公众运动，并充分利用了网络这一新兴的信息手段，把各国人民的智慧和热情都聚集在了一起。在盖洛•尼尔森、丹尼斯•海斯和其战友们的努力下，今天的“地球日”已真正成为全地球的节日，提醒着人类保护地球、善待地球。
In twentieth Century 90 at the end of the 1970s, Gerlo Nelson and Bruce Anderson (solar architect, writer, New Hampshire "Earth Day" organizer) together for the "Earth Day" into a year, high levels of activity, founded the "America earth day". "Earth Day" Webpage opened in 1995. "America 1999 Earth Day" the organization changed its name to "the Earth Day Network", has become a worldwide each year, to promote the "International Earth Day" organization. 2000 "Earth Day", and by Gerlo Nelson and Denis Hayes leadership, the difference is that this time they in 1970 "Earth Day" basis, joined the global public sports, and make full use of the network as a new means of information, the people's wisdom and passion together together. In Gallo - Nielsen, Denis Hayes and his comrades efforts, today's "Earth Day" has become the whole Earth Festival, reminding us to protect the earth, the earth.
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