On this day, 35 years ago, April 22, 1990 (March 27, 1990, the lunar calendar), World Earth Day. World Earth Day Promotion Map World Earth Day 1970 was an eventful year in the United States. Fiber optic fabric was invented. The tragedy of "Apollo 13" led to the failure of the moon landing program. A leak occurred at a nuclear factory near the Savana River in South Carolina. At that time, Americans breathed lead exhaust from luxury cars all day long. The factory emits smoke and sewage unscrupulously, but never worries about being prosecuted or condemned by public opinion. "Environmentalists" are rare. They are just words listed in the dictionary, but they are rarely valued by others. It was against this background that the first Earth Day was a great success. In view of public concern for environmental protection, the U.S. Congress adjourned on Earth Day, and nearly 40 members of the Senate and House of Representatives spoke at local rallies. Celebrities in the United States such as Lent Dubes, Paul Ehrlich and Ralph Nader delivered speeches clarifying the importance of the rally. A quarter of a million people gathered in Washington, D.C., and 100,000 marched on Fifth Street in New York City to support the event. World Earth Day promotion map World Earth Day comes into being against the background of increasingly serious environmental pollution. The World Earth Day event originated in the United States. On April 22, 1970, the United States held its first massive "Earth Day" event. On this day, more than 20 million people across the United States, 10000 primary and secondary schools, 2000 colleges and universities, 2000 communities and major groups participated in the event. By holding rallies, marches, preaching and various other forms of publicity, people call on everyone to take action to protect and save our planet. This is the first large-scale mass environmental protection movement in human history. This event was a great success, and Earth Day will also attract much attention every year in the future. This is the first large-scale mass environmental protection movement in the history of mankind. This event marked the rise of the environmental movement in the United States and prompted the U.S. government to take some measures to control environmental pollution. As the beginning of mankind's modern environmental protection movement, the "Earth Day" event promoted the establishment of environmental regulations in many countries. On April 22, 1990, more than 200 million people in more than 140 countries around the world held various environmental protection publicity activities at the same time. This activity was approved by the United Nations. Since then,"Earth Day" has become "World Earth Day". World Earth Day promotional pictures What is the significance of World Earth Day? The earth is the common home of mankind. However, with the development of science and technology and the expansion of economic scale, the global environmental situation has continued to deteriorate in the past 30 years. Data shows that since meteorological instrument observations were recorded in 1860, the global average annual temperature has increased by 0.6 degrees Celsius, and the 13 warmest years have occurred after 1983. In the 1980s, the number of people affected by disasters averaged 147 million each year globally, but by the 1990s, this number had risen to 211 million. At present, about 40% of the world's population is seriously short of water. If this trend is not curbed, more than 55% of the world's population will face water shortages within 30 years. The deterioration of the natural environment also seriously threatens wild species on the earth. Today, 12% of the world's birds and a quarter of all mammals are at risk of extinction, and overfishing has depleted one-third of fish resources. The World Earth Day event aims to arouse human awareness of caring for the earth and protecting their homes, and promote the coordinated development of resource development and environmental protection. Since the 1990s, China has held a "World Earth Day" publicity event on April 22 every year, and the theme of the event is determined based on the situation of the year. In 2008, the theme of "World Earth Day" determined by China was the same as the propaganda slogan of China's action for the "International Year of Planet Earth", namely,"Understand the Earth and Develop in Harmony." Its purpose is to popularize geoscience knowledge to the public, strengthen the whole society's understanding and effective utilization of geoscience, improve the public's understanding of resources and national conditions, and achieve harmonious development between man and nature. People always talk but not do anything, and often sigh. They look at the seawater contaminated by oil, look at the dry and scorched land, see those poor animals losing their homes, and see the earth polluted by many chemical plants. In fact, the earth is the only environment in which we live, so we must learn to protect our mother, the earth. World Earth Day promotional pictures