The background to the World Earth Day is provided by the increasingly serious environmental pollution.

As the beginning of modern environmental movement, Earth Day activities promote the establishment of a number of national environmental laws and regulations. On April 22,1990, more than 140 countries around the world, more than 200 million people across the country at the same time held a variety of environmental protection campaign. This activity obtained the UN approval. From now on “Earth Day” has become “World Earth Day”.

World Earth Day is every day, and anywhere you are.

Save our earth, save our future.

（By Liuqin）