The world emits more than 600 million tons of gases that pose a great threat to mankind every year. It is estimated that by the middle of the next century, one third of the earth's surface will be in danger of desertification, and 60 thousand square kilometers of land will be desertification every year, threatening more than 60 countries ... See these shocking figures. How do you feel, my friend?
Engels said: "We should not be too intoxicated with our victory over nature. Every time such a victory, nature is retaliating against us. " Isn't it? From the appearance of apes to the highly developed civilization era, human beings have never stopped asking for nature, and nature is also "responsive", which further breeds human greed. They wantonly cut down trees on the earth, set up chemical plants and discharge pollutants and wastes. As a result, once the mountains and rivers were beautiful, the blue mother earth looked devastated and filthy. Why isn't this chilling? More environmentally friendly ingredients ()
Environmental pollution also makes human beings suffer. Let's look back at history and see how our predecessors were punished by nature. These are the eight major public hazards in the world:
(1) The Maas Valley Incident in Belgium:1In February, 930, the industrial waste gas and dust discharged from the Maas Valley Industrial Zone in Belgium had a comprehensive impact on human body. Nearly 60 people died in a week, the mortality rate of patients with heart disease and lung disease increased, and the mortality rate of livestock also increased significantly.
(2) The smog incident in Los Angeles, USA: In the 1940s, photochemical smog produced by a large number of automobile exhaust in Los Angeles caused many people's eyes to be red and swollen, pharyngitis, respiratory diseases aggravated, and even thinking disorder and pulmonary edema. Environmental protection composition
(3) Donora incident in the United States: 5438+0984, 10. In June, sulfur dioxide and its oxides combined with atmospheric dust in Donora town, Pennsylvania, USA, causing serious air pollution, resulting in 59 1 1 person's sudden illness.
(4) Haze in London, England: 1952,1February 5-8, four days in London, England, and more than 8,000 people died in February.
(5) Minamata disease in Japan: 1953- 1968. In Minamata Bay, Kumamoto Prefecture, Japan, people ate fish, shrimp, shellfish and other aquatic organisms rich in mercury and methylmercury in the bay polluted by mercury-containing sewage, resulting in nearly 10,000 people suffering from central nervous system diseases, of which more than 60 people died of methylmercury poisoning.
(6) Exhaust gas incident in Niigata, Japan: 196 1 year, the exhaust gas from oil smelting and industrial fuel in Niigata, Japan seriously polluted the atmosphere, causing a sudden increase in the incidence of respiratory diseases, especially asthma, and forming a prominent environmental problem.
(7) Rice bran oil incident in Aichi, Japan:1In March, 963, rice bran oil was mixed with polychlorinated biphenyls (PCBs) pollutants due to poor production management in Aichi, Japan. After people ate this polluted oil, more than 13000 people were poisoned and hundreds of thousands of chickens died.
(8) Pain in Toyama, Japan: 1955- 1977. People living in Toyama, Japan, suffered from diseases caused by drinking cadmium-containing river water and eating cadmium-containing rice, and treated 258 patients, including 207 deaths.
Of course, environmental problems are not limited to these, such as deforestation and massive emission of greenhouse gases, which are all caused by human ignorance of nature and digging their own graves. Indeed, environmental problems have been plaguing the whole world. But who directed this tragedy? It's people. When the disaster comes to mankind again and nature takes endless revenge on mankind, mankind finally wakes up and understands the importance of environmental protection. If human beings want to conquer nature, they must respect it. We should not only carefully transform nature, but also boldly practice and boldly improve it, so as to control nature and make our own interests develop harmoniously with nature. Looking for model essay.
Facing the severe environmental problems in China, we can't repeat the mistake of "pollution first, then treatment" in western developed countries. "Pollution first, then treatment" is a very unwise choice, and the cost of treatment is very high. We should not only speed up development and get rid of the constraints of environmental problems on China's economy, but also implement the policy of putting prevention first and combining prevention with control to protect the environment.
"Don't do it with kindness and smallness", I think everyone understands. Protecting the environment starts with small things, such as picking up an abandoned battery, recycling waste products and refusing to use ultra-thin plastic bags. If everyone can do it, the world environment will be greatly improved. If you do, it means that you have made a certain contribution to protecting the environment. If you haven't done it yet, keep doing it from today, and slowly, you will find that everything you have done has produced wonderful results.
Clean air is the necessary material basis for people's survival. An adult breathes 15 cubic meters of air every day on average. If people breathe heavily polluted air, it is undoubtedly harmful to health. Therefore, studying the influence of air pollution and understanding the value of clean air is a very complicated frontier scientific research topic. Children are in the stage of growth and development, and they are the most sensitive people to external air pollution. It is easier to get valuable results by studying the influence of air pollution on children.
Based on this, Wei, academician of China Academy of Engineering and chief engineer of China National Environmental Monitoring Center, served as the chief scientist of the Sino-US scientific and technological cooperation project-the research on the impact of air pollution on human respiratory health. In Guangzhou, Wuhan, Lanzhou, Chongqing and other cities and suburbs, the diameter is 2.5 microns and the diameter is 2.5? 0 micron particles were investigated and monitored, and 8 196 questionnaires were obtained. About 15000 people were tested for children's lung function, including environmental monitoring data. * * * Get about 3 million data. Through statistical analysis, the influence of air pollution on human respiratory system health (especially children) was quantitatively understood.
The results show that the pollution of fine particles in the air is the most serious (2/3 cities in China exceed the standard), followed by sulfur dioxide pollution (0/3 cities in China exceed the standard), and the influence of nitrogen oxide pollution is relatively weak. It can be said that fine particles (inhalable particles) are the first killer of human health. According to experts, toxic heavy metals and acidic oxides attached to particulate matter are hundreds, thousands or even tens of thousands times richer than soil, and can float in the air for several days. Harmful substances enter human lungs with inhalable particles, and may enter the blood through alveoli, which directly harms human health.
Recently, this research achievement, which lasted for 8 years, passed the expert appraisal hosted by the State Environmental Protection Administration in Beijing. Experts believe that this research result is of great significance for us to understand the importance of clean air and improve the environmental awareness of the public and leaders. The data of the research results provide a scientific basis for national atmospheric environmental legislation, formulation and revision of air quality standards, emission standards and air pollution control policies.
I love life, and I prefer dripping water. Boil a pot of clear spring water on the stove every day, which is sweet and refreshing. It is this water that has watered our lives for thousands of years.
In fruits, vegetables, crops, flowers, grass, fields, rivers ... it is everywhere, constantly changing all kinds of States, rain, snow, steam, are your gestures, you are so ordinary, we have you as naturally as we have ourselves. However, your broad mind and changing body, when you flow through the dirt, you clean them, but leave the harm to yourself; When you flow through the sewage channel of the factory, it is fatal, and you hurt it! When you float back to the blue sky, you encounter waste gas. How can your pure soul endure their swallowing? Did you cry?
This is because we hurt you. You gave us too much and we gave you too little. We can't fail you. After washing the vegetables, we will water the fields for you so that the crops can absorb you again. In the factory, we will no longer discharge waste water into your arms; We won't let smoke fly into the blue sky and give you back your pure soul. This is our yearning, and we will make further efforts to invent scientific methods, just as you treat us.
Look at it! Farmers care for you with their hard sweat and baptize you more pure and fearless; Workers protect you with their hard work and don't let sewage persecute you; Scientists spend their whole lives protecting you and developing ecological pesticides and fertilizers; The most respectable thing is our soldiers in white, who insist on working for eight hours in a row, enduring the limit of life and not letting a little toxin enter your body.
Because, we already know that you are ordinary but too precious. In the river, your body becomes thinner and thinner. In the hot summer, Miao Miao's hope for you is dying, but you don't come to see it. You make us wait so anxiously, even the kindest mother earth is irritable, and the wind and sand all over the sky are all because of your absence. We will build canals and dams, cherish you and take root in trees to raise you.
Turn the desert into an oasis; Make the grass fatter and the trees greener; The water in the river is flowing happily, and it brings us food and goods. Open the dam and water the farmland during drought; Artificial rainfall, sprinkled on the earth; If you are fierce, let it be tamed and let people generate electricity.
Let us have you, but we should cherish you and return your pure soul and unyielding incarnation to you.