Manuscripts of World Earth Day 422 1 The top ten environmental problems that threaten human survival are:
global warming
With the increase of population and the continuous expansion of the scale of human production activities, greenhouse gases such as carbon dioxide (co2), methane (ch4), nitrous oxide (n2o), chlorofluorocarbons (CFCs), carbon tetrachloride (ccl4) and carbon monoxide (co) are released into the atmosphere, resulting in changes in atmospheric composition. The air quality is affected and the climate is getting warmer. Due to global warming, it will have various effects on the world. Higher temperatures can melt polar glaciers, and the sea level will rise by 6 cm every XX years, thus flooding some coastal areas. Global warming may also affect the changes of rainfall and atmospheric circulation, making the climate abnormal and prone to droughts and floods, which may lead to changes and destruction of ecosystems. Global climate change will have a series of significant impacts on human life.
(b) depletion and destruction of the ozone layer
In the stratosphere 10~50 km from the earth's surface, 90% of the ozone gas on the earth is concentrated, and the ozone concentration is the highest at 25 km from the ground, forming an ozone concentration layer with a thickness of about 3 mm, which is called the ozone layer. It can absorb ultraviolet rays from the sun to protect life on earth from excessive ultraviolet rays, and store energy in the upper atmosphere to adjust the climate. However, the ozone layer is a very fragile atmosphere. If some ozone-destroying gases enter, they will react with ozone and the ozone layer will be destroyed. The destruction of ozone layer will increase the intensity of ultraviolet radiation on the ground and bring great harm to life on earth. Studies have shown that ultraviolet radiation can destroy biological protein and genetic material deoxyribonucleic acid, leading to cell death. Increase the incidence of human skin cancer. Injury to the eyes, leading to cataracts and blindness. Inhibit the growth of soybeans, melons, vegetables and other plants. , and penetrate the water layer at the depth of 10 meter, killing plankton and microorganisms, thus endangering the food chain of aquatic organisms and the source of free oxygen, affecting the ecological balance and the self-purification ability of water bodies.
Reduction in biodiversity
The Convention on Biological Diversity states that biodiversity "refers to all kinds of organisms from all sources, including terrestrial, marine and other aquatic ecosystems and their ecological complexes. It includes diversity within species, between species and between ecosystems. " In the long process of biological evolution, some new species will be produced, and some species will disappear with the change of ecological environment conditions. Therefore, biodiversity is constantly changing. In the past century, due to the rapid increase of population, unreasonable exploitation of resources and environmental pollution, all kinds of creatures and their ecosystems on the earth have been greatly impacted and biodiversity has been greatly destroyed. Some scholars estimate that at least 50,000 biological species are extinct in the world every year, and an average of 140 species are extinct every day. It is estimated that by the beginning of the 265,438+0 century, the global wildlife loss will reach 65,438+05% ~ 30% of the total. In China, due to the pressure of population growth and economic development, the unreasonable utilization and destruction of biological resources, the loss of biodiversity is also very serious, and about 200 species have become extinct. It is estimated that about 5,000 species of plants are on the verge of extinction in recent years, accounting for about 20% of the total number of higher plants in China. About 398 species of vertebrates are also endangered, accounting for 7.7% of the total number of vertebrates in China. Therefore, it is also an important task for us to protect and save biodiversity and the living conditions on which these creatures depend.
(D) the spread of acid rain
Acid rain refers to rain, snow or other forms of precipitation whose ph value is lower than 5.6 in atmospheric precipitation. This is a manifestation of air pollution. The influence of acid rain on human environment is various. Acid rain falling into rivers and lakes will hinder the growth of fish and shrimp in water, leading to the reduction or extinction of fish and shrimp. Acid rain also causes soil acidification, destroys soil nutrition, makes soil barren, damages plant growth, reduces crop yield and damages forest growth. In addition, acid rain will corrode building materials. Relevant data show that in recent ten years, some historical sites in acid rain areas, especially stone carvings, stone carvings or bronze statues, have been destroyed for more than a hundred years, or even more than a thousand years. There are three major acid rain areas in the world. The acid rain area in South China is the only one that has not been treated.
(e) sharp decline in forests.
On today's earth, our green barrier forest is disappearing at an average rate of 4000 square kilometers per year. The reduction of forest destroys its function of water conservation, leading to species reduction, soil erosion and reduction of carbon dioxide absorption, which further intensifies the greenhouse effect.
(vi) Land desertification
The global land area accounts for 60%, of which desert and desertification account for 29%. Every year, 6 million hectares of land become desert. The annual economic loss is $42.3 billion. There are 5 billion hectares of arid and semi-arid land in the world, of which 3.3 billion hectares are threatened by desertification. As a result, 6 million hectares of farmland and 9 million hectares of pastoral areas lose productivity every year. The valleys of Tigris and Euphrates rivers, the cradles of human civilization, have changed from fertile soil to desert. Soil erosion in the Yellow River Basin of China is also very serious.
(7) Air pollution
The main factors of air pollution are suspended particles, carbon monoxide, ozone, carbon dioxide, nitrogen oxides and lead. Air pollution causes 300,000-700,000 people to die prematurely every year due to smog pollution, 25 million children suffer from chronic laryngitis, and 4-7 million rural women and children get sick.
(8) Water pollution
Water is what we need most in our daily life, and it is also one of the most contacted substances in the world. However, now even water has become a dangerous product.
(9) Marine pollution
Human activities have increased nitrogen and phosphorus in coastal waters by 50%-200%. Excessive nutrients lead to a large number of coastal algae growth. Red tides occur in the Baltic Sea, the North Sea, the Black Sea and the East China Sea. Marine pollution leads to frequent red tides, destroying mangroves, coral reefs and seaweeds, resulting in a sharp decline in fish and shrimp in the offshore area and heavy losses in fisheries.
⑽ Transboundary movement of hazardous wastes
Hazardous waste refers to waste with chemical activity or toxic, explosive, corrosive and other harmful characteristics to human living environment, except radioactive waste. The United States stipulates in the Law of Resource Protection and Recovery that the so-called hazardous waste refers to a mixture of solid waste and several solids, which may cause or lead to human death or serious incurable diseases or disabilities because of its high quantity and concentration.
Content Collection of 422 World Earth Day Manuscripts II Environmental Protection Action
clothes
(1) Know the source of clothing material: 1. Only natural materials (organic) such as natural cotton and hemp can be recycled. 2. Buy and maintain clothes according to the washing label to prolong the life of clothes.
(2) Demand is determined by four factors: the amount of laundry, the capacity of home, lifestyle and economic situation. Try to control it well and don't overdo it.
(3) Tips for wearing old clothes:
1. Self-awareness: consideration of body shape, skin color and lifestyle.
(2) Find out the key points of fashion, such as length and color. Generally, simple and good cutting (three-dimensional cutting) can best express the interactive relationship between people and materials.
(3) Accessories, such as scarves, pins, belts, etc., are small, diverse, effective and easy to collect. A small amount of clothes is a reliable accessory that highlights the artistic effect of dressing. ..
eat
(1) Every April 22nd, Earth Day is a vegetarian day. Animal husbandry consumes a lot of grains and beans, as well as a lot of valuable water resources. In order to herd cattle and raise pigs, the virgin forest was sacrificed, resulting in the greenhouse effect.
(2) Eat less (cook at home, eat out in moderation, and pack up and go home after eating).
(3) Fasting for one day (experience the taste of environmental protection in the body).
(4) Refusing to buy alpine tea and high-cold vegetables (alpine tea and high-cold vegetables make forests disappear in Taiwan Province Province, destroy soil and water conservation in mountainous areas, fail to play the role of water storage, and pollute water sources and reservoir ecology by using a large number of pesticides and fertilizers).
on one's pins
(1) Use more second-hand furniture (whether buying a house or renting a house, using more second-hand furniture can not only recycle and save resources, but also help each other and enhance interpersonal friendship if flea markets for regular second-hand goods exchange can be held in offices, communities and networks).
(2) Use planting and greening for home decoration (don't do excessive decoration at home, be simple and natural. You don't have to use artificial materials for home layout. You might as well use more ecological natural materials. Potted plants of all kinds of flowers and plants, try to use native tree species, leave more natural soil in the courtyard at home, and use less cement or hard pavement).
(3) Please use utensils to hold water, wash fruits and vegetables, wash dishes, brush your teeth and wash your face to save precious water.
(4) Centralized use of power supply and air conditioning in rooms (try to open an air conditioner in one room as little as possible, and try to concentrate on office when there are few people, so as to reduce the use of air conditioners and electric lights).
line
(1) Take the stairs instead of the elevator (people who live in the building, whether in the office or at home, might as well take the stairs instead of the elevator if they are not in a hurry, which will save energy and exercise).
(2) Go out and walk more, ride bicycles, use public transportation systems, drive less and ride motorcycles.
422 World Earth Day Manuscript Content Collection 3 World Earth Day Sentences
1. Love life, and life gives you a good face. Love work, and work will give you a good turn. Love society, and society will give you good color. Love the earth, and the earth will give you a good view. Happy Earth Day!
2. Little by little, it merged into a river, and every grass and tree merged into a forest. Saving starts with me.
3. May our sky be bluer, the water clearer and the earth more beautiful.
4. Clean and hygienic environment, neat and beautiful makeup and appearance. Clean, hygienic, natural and beautiful, and protect the environment. The family is bright, the mood is beautiful, and the healthy life is beautiful. Earth Day: Let's clean up together. May you be healthy and happy!
5. Artificial environment, environmental education.
6. Trees are the lungs of the earth. Without trees, the earth cannot breathe.
7. Let's walk around the earth hand in hand. Let's have a look. Mother Earth is suffering. Don't forget gratitude, don't forget the burden borne by your mother. Save resources and protect the environment. Earth Day starts from me bit by bit!
8. Limit consumption to the range that the ecosystem can bear.
9. Flowers and trees, cherish the beautiful gift of nature!
10. The earth is my home, and environmental protection depends on everyone.
1 1. Save one degree of electricity and a bright future. Save a drop of water and a dessert for the future. Save a liter of oil, and also save a force for the future. Earth Day, look forward to a low-carbon life!
12. There is no peace, no wind and no sunshine. Wars are frequent and dreams are illusory. The disaster is sad and depressing. Life is affectionate, assured and sunny. Earth Day, dear friends, stay firm!
13. The sky is blue and the clouds are floating, the fresh air is in a good mood, the chirping birds get up early, and the happy life is carefree. Earth Day is coming, so we should have the concept of environmental protection, enhance the awareness of environmental protection, and let the beauty stay in the world.
For life on earth.
15. Deforestation cut off the source of life, the sewage was discharged randomly, the blood of the earth was dyed black, and it was hunted at will, which destroyed the ecological environment, and the earth roared and opened the prelude to disaster. On Earth Day, mankind should wake up and protect the environment is imminent. Let's work together to build a beautiful home!
16. Let Mother Earth enjoy the "green" blessing. She has done too much for us.
17. Family life is happy and sweet. You can never have too many kisses and love. Birds sing and flowers smell, and everyone loves them. Everything is harmonious, life is pursued, and the earth is healthy. I want to keep it, save energy and reduce emissions, and do my best. Earth Day is coming, and I want to appeal that * * * is the same home, and you and I cherish it.
18. Plant more trees, cut down fewer trees, protect the environment and engage in greening. Save water, less pollution, good air, everyone laughs. On Earth Day, may we protect and cherish our common home.
19. Protect the earth and give future generations a world of blue sky, clear water and green trees.
20. Use your head and turn waste into treasure. Low-carbon life, I will guide, green home, you and me.
422 World Earth Day Manuscripts Collection 4 The Origin of World Earth Day
The first Earth Day in human history was founded on April 22nd, 1970 by a student of Harvard Law School who just turned 25. Hayes initiated and organized this activity on campus. He is called the father of today's Earth Day. But in fact, the earliest initiator of Earth Day was not him, but an American political celebrity, Gallo? GaylordNelson。 1962, senator Gallo, Democrat of Wisconsin, USA? Nelson tried to persuade President Kennedy to take a trip to protect wild animals, thus arousing public concern about protecting the environment. The President fully agreed with this constructive opinion. The following autumn, Nelson and three other senators took part in the president's meaningful trip, which was a good start. Nelson plans to set up Earth Day again. 1969 In the summer, Nelson and his colleagues in the Senate set up an organization and made a plan to commemorate National Earth Day, which was announced in early September of the same year, including holding lectures on environmental protection in major campuses across the United States. The response of the American people was so enthusiastic that Nelson did not expect it.
1969 Gallo? Nelson proposed to hold a lecture on environmental protection on university campuses all over the country. After hearing this suggestion, Hayes envisaged holding an environmental lecture in Cambridge. So he went to Washington, D.C. and met Nelson. Young Hayes told his thoughts and Nelson was overjoyed. He immediately expressed his willingness to hire Hayes, and even encouraged him to suspend his studies and concentrate on environmental protection. Therefore, Hayes resolutely went through the formalities of suspension from school. Soon, he expanded Nelson's ideas and began large-scale community activities all over the United States. The idea of holding Earth Day was thus formed.
He chose1Wednesday, April 22nd, 970 as the first Earth Day. On April 22 of that year, about 20 million people in the United States took part in the parade.
America 1970 is an eventful year. Invented the optical fiber fabric. The Apollo 13 tragedy caused the moon landing plan to fail, and a nuclear power plant near savannah river, South Carolina leaked. At that time, Americans breathed lead-containing exhaust gas from luxury cars all day. Factories discharge smoke and sewage unscrupulously, but they never worry about being sued or condemned by public opinion. There are few environmentalists. They are just words listed in the dictionary, but they are rarely taken seriously. It is against this background that the first Earth Day was a great success. In view of public concern about environmental protection, the US Congress adjourned on Earth Day, and nearly 40 members of the House of Representatives spoke at local gatherings. Lent? Paul Dubois. Ehrlich and Ralph? American celebrities such as Nader delivered speeches to clarify the significance of the rally. 250,000 people gathered in Washington, D.C., and more than 654.38 million people marched on Fifth Avenue in new york City to support this activity.
According to statistics, on this day, more than 20 million people, 1000 primary and secondary schools, 2,000 colleges and universities, 2,000 communities and major groups in the United States participated in Earth Day activities. People hold rallies, parades and other forms of publicity activities, holding highly polluted earth models, huge paintings and charts, shouting slogans and demanding that the government take measures to protect the environment. /kloc-The first Earth Day in 0/970 was a huge event, and it was hailed as the biggest social activity in the United States since World War II. This activity marks the rise of the American environmental movement and urges the American government to take some measures to control environmental pollution.
1Earth Day on April 22nd, 970 was the first large-scale mass environmental protection movement in human history. As the beginning of modern human environmental protection movement, it promoted the establishment of environmental laws and regulations in western countries. For example, the United States has successively promulgated the Clean Air Law, the Clean Water Law and the Endangered Animals Protection Law. Earth Day in 1970 also contributed to the establishment of the National Environmental Protection Agency of the United States, and to a certain extent contributed to the convening of the first United Nations Conference on the Human Environment in Stockholm in 1972, which effectively promoted the development of environmental protection in the world. 1973 The establishment of the United Nations Environment Programme, the establishment of Greenpeace, an international environmental protection organization, and more and more government agencies and organizations are playing an important role in protecting the environment. Therefore, Earth Day has become a global activity.
After the first Earth Day was successfully held, environmental protection departments of governments and non-governmental environmental protection organizations were established one after another, so Earth Day became a common environmental protection memorial day in many countries. 1On April 22nd, 990, Earth Day became the first international Earth Day, with 200 million people from 14 1 countries participating, and thousands of activities were held around the world. Participating groups hold symposiums, parades, cultural performances, clean environment and other activities, advocate the spirit of Earth Day, and further put pressure on the government, hoping to attract more attention and formulate policies. According to McGrath, the international coordinator of Earth Day, groups in 140 countries have formulated activities related to Earth Day. The scale of this activity is much larger than the first Earth Day held 20 years ago. Many countries set Sunday (1April 22, 990) as the climax of a week's activities.
1On April 22nd, 990, hundreds of millions of people around the world wore blue and green clothes to participate in Earth Day activities. To commemorate the 20th anniversary of Earth Day, they launched a campaign to pick up waste paper and plastic bags, and it is forbidden to take out garbage 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 act to protect the earth's environment.
On Earth Day, about 6,543.8 billion people in the United States leave their cars at home to prevent automobile exhaust and other harmful emissions from being discharged into the air. In China, Premier Li Peng made a speech on environmental issues on TV on April 2 1, and CCTV also broadcast a special report on only one earth. Since then, China has launched publicity activities to commemorate Earth Day every year.