There are many pollutants that pollute the environment around us, such as a lot of domestic garbage, plastic bags (also called white garbage), disposable wooden chopsticks, disposable lunch boxes, peel scraps and so on. There is no doubt that pollutants do great harm to the environment. For example, the rotting carcasses of animals will affect environmental sanitation and breed bacteria. Disposable wooden chopsticks, which restaurants and restaurants think are very sanitary, will be thrown away after use, which will affect the city appearance and destroy the environment.
A drop of water can reflect the brilliance of the sun, and a green leaf can show the vitality of the earth ... There must have been something similar around us: the cleaners were already cleaning nervously and quickly before the curtains were opened in the morning. Originally, it was a clean and spotless street, but it was smeared with a black spot because a person littered casually! Going to the toilet is a very common thing, but some people regard water as very small and infinite, let it run away in vain and make it attractive to human beings! In a public place, such as a flowing street, a person spits gum everywhere, you may pass by casually, but the sun and the moon accumulate, and the street becomes a sika deer, no, it should be said that it is a zebra's spot.
Cherishing resources means cherishing the present, cherishing the future and protecting the environment, protecting the earth and this peaceful and warm world.
Listen! The faucet appeals to human beings: human beings, I don't ask for anything in return, but please protect our limited resources and the earth with a population of1300 million! In summer, I gave you cool and sweet water, but you drank it. . Cheese. Ouch!
Did you hear the tap? How come? Still hesitating? If "eliminating" this demon has controlled your behavior, you should try to overcome it; If it is a fierce tiger, then we will be Song Wu and knock it down. If it is a hard stone, let's be climbers and step on it.
Come on! Humans, let's act. Let's build a green base, and one more bird will fly to the embrace of nature. Cherishing resources is our common goal! On environmental protection, perhaps, when you stand by the window with your chin propped up, a series of question marks will pop up in your heart: What is environmental protection? Let me roughly explain the above problems: environmental protection, the extension of this word means recycling, while the original meaning refers to a way to protect the earth. Why environmental protection? Because if we want to keep the earth's resources flowing, we must prove with practical actions that protection is to protect the present earth. Then, this small area of China will face a bright future!
2. How to write a composition about environmental pollution Since mankind came to this world, it has been facing serious environmental problems. However, some people face such serious environmental pollution, but they don't realize that the signs of harm have come.
On the earth where human beings live, there is quite a lot of "white environmental pollution". For example, people go shopping in shopping malls, vegetable markets and so on. All of them are packed in white plastic bags. Said it was because the white plastic bags were hygienic. But people throw it on the ground after using it, no matter how much pollution it will bring.
There is also air pollution, and many rich big bosses drive around. For some people, this is a symbol of wealth. But in the eyes of people who understand the great harm of this pollution, this is an uncivilized performance. These people make a mess of the whole city, but they don't think they are destroying the environment.
In rural areas, with flowers and trees, the air is of course good, and environmental pollution will be reduced accordingly. But people don't know how to protect, but to destroy. For example, people cut down trees indiscriminately, leaving a mountain full of air and vitality scarred and lifeless. This has caused serious environmental problems and swamps everywhere in the river.
How can mankind be indifferent when faced with so many environmental problems? In order to protect mankind from the threat of environmental pollution, we should issue the call of "protecting the environment, starting with me" and "caring for every grass and tree is caring for human survival". Let's "protect the environment"!
How to write a composition about destroying and polluting the environment (with specific examples) The sky is gloomy, and there is no smell in the morning. The calm beach is somewhat unusual. After a while, it began to rain lightly, which made the grotesque things on the beach more dazzling and turned the beautiful sea into an ugly old woman like a pure girl.
"Mom, look, what's on the beach?" The fish asked his mother curiously. Mother sighed sadly and said, "Hey, this is rubbish." The little fish asked, "So where did they come from? How can it be on the beach? " "This is caused by human beings. They throw all the rubbish into the sea, and it rushes to the shore with the tide, that's all. " "Why do humans do this? Aren't they all children of Mother Earth? " Mother Fish said sadly, "Who says they are not the children of Mother Earth? But they are selfish. They threw all the rubbish into the sea for convenience. They think there is nothing wrong with this, but they will know later. " "oh? What will happen in the future? " "Humans rely on water, plants on the ground and marine animals to survive, but now there are fewer and fewer forests and places where food can be grown, and deserts are replaced; Fresh water is wasted by human beings without restraint; Garbage contains toxic substances. If human beings continue to dump garbage into the sea, in the near future, the creatures in the sea will be poisoned, and then human beings will be unable to survive ... Mother Earth's "green sweater" has now become a "yellow sweater", and her blue "eyes" are no longer shining, only chapped wrinkles are left ... "Mother Fish said and cried. Xiaoyu is also very sad. It looked at the sky and it rained even harder. "Mother Earth, are you crying? Although I am still young, I will try my best to encourage people not to ruin your appearance! "
The little fish asked his mother again, "Mom, isn't this rubbish of any other use?" "Of course not. Some of them are more decorative and can be made by hand. Those glasses, waste paper, scrap iron, waste plastics and waste wood can be recycled. Non-recyclable garbage such as peels and rotten food contains more toxic substances and should be sent to the garbage disposal station for proper disposal. "
"I know!" The little fish shouted happily, "As long as everyone and every creature contribute a little, Mother Earth will always be the most beautiful mother!" " "
At this time, the rain stopped and a beautiful rainbow appeared in the sky, which was the most beautiful smile of Mother Earth!
4. How to write a 300-word composition about environmental pollution in grade three?
There are several dense forests with a clear river between them, just like a blue ribbon.
However, gradually, the surrounding forests were cut down, and the original clear water in the river disappeared and became a stinking gutter. This is all because of the ruthless destruction of human beings! The swallow said to the little fish, "Human beings are so hateful that they not only make Mother Earth riddled with holes, but also destroy our home on which we live!" " ! "The little fish said: Yes, because of human beings, the water quality is getting worse and worse now, and I can't live any longer. Also because of the exhaust emissions from human factories, I will never see the blue sky again! "
Seeing this scene, I clenched my fist and felt sad and angry. I thought: Do those people have a conscience? Please cherish the earth!
5. How to write the first article about protecting the environment? The earth is our home and the mother of mankind.
We rely on it and explore it. How beautiful this blue planet is, but you know, there is only one earth! Regrettably, many people turn a blind eye to this simple truth and continue to do whatever they want, regardless of the safety of the earth's homeland.
Qu, an environmental scientist, once said: "Only change can save the fate of mankind, and only change can make our descendants survive." One of the "changes" is environmental protection.
That's right, so now many people are holding slogans and shouting empty slogans in the street, but they don't see much action. Will the pollution get better? Don't! You see, the rivers in our city are black and smelly; Long queues of cars emit a lot of exhaust gas; A piece of green land has become a "stone forest"; The crisp birdsong disappeared without a trace.
In this way, China will continue to be short of water, the air will become more and more turbid, and 10% of bird species will disappear in this century. The above things, we humans are the culprit! Everyone knows that trees can absorb carbon dioxide, release oxygen and purify the air, which is a necessary condition for our human survival.
However, some people cut down trees for money, which leads to excessive soil erosion, serious damage to the earth's vegetation, and desertification of oases and cities, threatening our human survival. As for the disposable chopsticks we usually use, it consumes dozens of acres of forest every day. In the eyes of those people, trees seem to have no value except for furniture and building materials.
Does anyone not understand what trees mean to us? Our living area is already very small. If we go on like this, we may even lose our only land. In addition, the Yellow River, our mother river, has become one of the most polluted rivers in China in recent years.
We can't watch the Yellow River dry up from our hands, so many environmentalists have studied plans to control the pollution of the Yellow River and tried to improve its water quality. However, without our participation, the Yellow River, the cradle of our life, will run dry and die.
If we destroy the environment again without restraint, we will naturally be punished. Those catastrophic floods claimed countless lives, and due to the greenhouse effect, glaciers in Antarctica and the Arctic melted, resulting in rising water levels and seawater flooding coastal areas, which caused great economic losses.
Isn't this the best proof? My hometown Guangning relies on Zhuhai eco-tourism to develop its economy. Now, the environment of some bamboo forests is so chaotic that people are complaining. Eco-tourism in Zhuhai is the foundation of our development in Guangning. When the roots are destroyed, how can we grow lush branches and leaves and produce beautiful flowers? Let's be kind to human beings and nature! I wonder if you have read the article 100 things you can do to protect the environment.
In fact, there are many things we can do. For example, plant a pot of flowers and a tree on Arbor Day; Protecting wild animals is the balance of ecology; Cherish water resources and don't dump garbage into the river; Being a little environmental guardian, using every green anniversary to publicize environmental awareness, so that green mountains are always there, green water is always flowing, and the soil is always fragrant ... these are all things we can do. Why don't we want to practice? Now, the ecological environment of the earth is getting worse and worse, and the environmental alarm has sounded.
Let's join the ranks of environmental protection, in order to create a bright future in which man and nature live in harmony, and let man and nature live endlessly. Looking around, only uneven land, large areas of forests have been cut down and become wood products in people's lives. People just make groups of animals homeless and rush to other places for their own self-interest.
This is not a false fantasy, this is a bloody fact. Once upon a time, a large number of animals and plants in the world were extinct, and many animals and plants were on the verge of extinction. Why? This is all because of human deforestation and destruction of the ecological environment, which is the fundamental reason.
Land resource is one of the three major geological resources (mineral resources, water resources and land resources), and it is the most basic resource and labor object of human production activities. The use of land by human beings reflects the development of human civilization, but it also causes direct damage to land resources, mainly manifested in soil erosion, land desertification, secondary salinization of land and soil pollution caused by unreasonable farming, among which soil erosion is particularly serious, which is another serious crisis facing the world today.
It is estimated that the global surface soil loss of cultivated land is about 23 billion tons/year. Some people think that acid rain is a silent crisis, the most serious environmental threat that has ever attacked us, and an invisible enemy.
This is not an alarmist. With the increase of industrialization and energy consumption, acid emissions are also increasing. They enter the air and form acid rain after a series of actions.
Although red tide has existed since ancient times, with the rapid development of industrial and agricultural production, water pollution is becoming more and more serious. Since 1933 was first reported in China, 1994 * * has had 194 large-scale red tides, of which there were only four before the 1960s and 157 after the 1960s.
Oil pollution is very harmful to water quality and aquatic organisms. The oil floating on the water surface can quickly spread to form an oil film, which prevents the water surface from contacting with the air and reduces the dissolved oxygen in the water.
Oil contains polycyclic aromatic hydrocarbons carcinogens, which can be enriched by aquatic organisms and endanger human health. Sulfur dioxide is mainly produced by burning sulfur-containing substances such as coal and fuel oil, and secondly comes from nature, such as volcanic eruption and forest fire.
Sulfur dioxide is very toxic to human conjunctiva and upper respiratory mucosa, which can damage respiratory tube and cause bronchitis, pneumonia, even pulmonary edema and respiratory paralysis. The elderly or chronic patients exposed to sulfur dioxide with a short-term concentration of 0.5 mg/m3 will increase the mortality rate, and the concentration is higher than 0.25 mg/m3, which may aggravate the condition of patients with respiratory diseases.
People who have been exposed to air with a concentration of 0. 1 mg/m3 for a long time have more respiratory diseases. In addition, sulfur dioxide is easy to cause corrosion, peeling, fading and damage to metal materials, construction, cotton and chemical fiber fabrics, leather paper and other products.
It can also make plant leaves yellow or even die. Protecting the environment is everyone's responsibility.
Article 3 guarantee.
6. The first composition about environmental pollution: People always think that the oceans, land and air on the earth are endless, so they never worry about discharging tens of millions of tons of waste gas into the sky and dumping hundreds of millions of tons of garbage into the ocean.
Everyone thinks the world is so big. What kind of waste is this? We were wrong. In fact, although the earth is large, creatures can only live in the range of 8 km above sea level to the seabed 1 1 km, and 95% of creatures can only live in the middle of 3 km. People have wantonly polluted this limited living environment from three aspects. Marine pollution: mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories and acidic solutions from mines; They pollute most marine lakes. Therefore, not only marine organisms are harmed, but birds and humans may also be poisoned by eating these organisms.
Land pollution: garbage disposal has become an important issue in major cities. Many of the tens of millions of tons of garbage every day cannot be burned or decomposed, such as plastics, rubber, glass, aluminum and other wastes. They have become the number one enemy of urban health.
Air pollution: this is the most direct and serious, mainly from carbon monoxide and hydrogen sulfide released by factories, automobiles and power plants. Every day, people get diseases of respiratory organs or visual organs because of contact with these dirty air. If we still ignore the warnings of experts, we will definitely be reduced to the point where there is no half an inch of pure land to live in.
Environmental pollution refers to the phenomenon that human beings directly or indirectly discharge substances or energy that exceed their self-purification ability to the environment, thus reducing environmental quality and adversely affecting human survival and development, ecosystems and property. Specifically, it includes water pollution, air pollution, noise pollution and radioactive pollution.
Water pollution refers to the change of chemical, physical, biological or radioactive pollution characteristics of water body due to the intervention of some substances, which affects the effective use of water, harms human health or destroys the ecological environment, and leads to the deterioration of water quality. Air pollution refers to the phenomenon that the concentration of pollutants in the air reaches a harmful level, which destroys the ecological system and the conditions for the normal survival and development of human beings and causes harm to people and creatures.
Noise pollution refers to the phenomenon that the environmental noise generated exceeds the national environmental noise emission standard and interferes with the normal work, study and life of others. Radioactive pollution refers to the appearance of radioactive substances or rays exceeding the national standards on the surface or inside of substances, people, places and environmental media due to human activities.
For example, exceeding national and local pollutant discharge standards, discharging pollutants in excess of categories, quantities and concentrations; Loading and transporting oil or toxic goods without taking measures to prevent spillage, causing the goods to fall into the water and causing water pollution; Illegal discharge of toxic and harmful substances into the atmosphere, causing air pollution accidents, and so on. With the development of science and technology and the improvement of people's living standards, environmental pollution is also increasing, especially in developing countries.
Environmental pollution is becoming one of the common topics in the world. Due to people's insufficient expectation of the negative impact of highly developed industries and unfavorable prevention, three global crises have resulted: resource shortage, environmental pollution and ecological destruction. Humans constantly discharge pollutants into the environment.
However, due to the diffusion, dilution, redox and biodegradation of atmosphere, water and soil, etc. The concentration and toxicity of pollutants will naturally decrease, which is called environmental self-purification.
If the discharged substances exceed the self-purification capacity of the environment, the environmental quality will change adversely, endangering human health and survival, thus leading to environmental pollution. Environmental pollution will reduce biological yield and aggravate environmental damage.
Environmental pollution sources mainly include the following aspects: 1) waste smoke, waste gas, waste water, waste residue and noise emitted by factories; 2) Waste smoke, waste gas, noise, water theft and garbage discharged in people's lives; 3) Exhaust gas and noise emitted by vehicles (all fuel vehicles, ships, airplanes, etc.). ); 4) Water from farmland irrigated with chemical substances such as chemical fertilizers, pesticides and herbicides. 5) Mine wastewater and waste residue.
The harm of water pollution is self-evident. Water pollution and water quality deterioration have brought serious environmental protection problems to human health, human life and production, which is the biggest problem faced by human beings in modern life. To solve this problem, we must start from the foundation. First of all, we must publicize a lot to raise people's awareness and strengthen environmental awareness. Second, we should recycle waste, reduce the felling of trees and strengthen the control of white pollution. Use less plastic products. Finally, we should improve the cleanliness and make the city cleaner. For the sake of the earth's tomorrow, we must work hard and protect the environment now. Here, we put forward the following suggestions: implement garbage sorting and bagging. This can not only reduce the workload of sanitation workers, but also make better use of waste, reduce pollution and save resources. Use less plastic bags and try to use bamboo baskets when buying food. Use pens with replaceable refills whenever possible. Reduce the waste and garbage of ballpoint pen shell. Try not to use disposable lunch boxes when going out to eat. Sowing green is the hope of sowing surplus garbage and environmental problems, and the recycling and comprehensive utilization of garbage (2) Science lies in the sea bathroom. Drinking water is becoming a trend now, although the media has introduced the disadvantages of drinking water more than once. However, drinking water aquariums are still expanding. Drinking water not only refers to pure water, but also includes mineral water, distilled water and even space water. However, drinking tap water that we grew up drinking has become relatively non-potable water. It is not ruled out that drinking water is popular at present, and speculation has played a certain role, but it reflects that the current water pollution has reached an unbearable level. The second part: Whenever I sit in the classroom with bright windows, I walk by the clear lake in Kagami Akira and fly on the grassy football field. But a crisis that has been lurking around us for a long time is slowly erupting, and maybe one day this beautiful scenery will leave us.
All this is caused by human beings. The key to the gate of heaven and the key to the gate of hell are in human hands.
We middle school students should consciously fulfill the responsibility of protecting the environment, improve environmental awareness, strengthen the concept of legal system, and implement environmental protection actions. Be a "little guardian of civilization".
Our earth is a beautiful planet. But soil erosion and desertification are still absent.
7. Composition on environmental pollution I can't forget the wisp of kitchen smoke in early spring. My father and I are driving home. The river flows slowly, the willows are graceful and the blue sky is blue. My father and I can't help but be deeply intoxicated. The car slowly climbed up a bridge in front of my house. "What's that smell?" Suddenly, I don't want to enjoy spring scenery anymore. I looked up and saw what it was. This factory is smoking.
This is pollution! What is pollution? Pollution means releasing all kinds of harmful substances through various channels and leaving them in the air. Common pollutants include burning harmful substances such as carbon compounds and chemical harmful substances such as benzene pollutants. The consequences of pollution are very serious.
If greening can make a great contribution to the environment, then pollution is enough to worsen the good natural environment by 3 to 5 times. How shocking! Let's look at an example. There is a factory in front of my house. The factory often smokes, sometimes a puff of kitchen smoke, sometimes bouts of smoke. The surrounding residents suffered greatly. The smoke suddenly turned into a black dragon and began to run. After a while, the sky became gray and the smell was really bad, which seriously endangered everyone's health.
Why should we protect the environment? The earth is our home. The quality of the ecological environment has greatly affected our health, and everyone is eager for a good body. Some people say, "Health is the capital of revolution."
In poor health, what revolution can we talk about? Talking about learning? Isn't it? This shows the importance of protecting the environment. Protecting the environment is imminent.
But how to protect the environment effectively is really impossible. But it's actually not difficult. The key is to start from me and start from now.
Take the garbage problem as an example. I have three positive suggestions. What are the "three suggestions"? 1. The factory does not discharge waste gas and wastewater at will, and actively adopts various advanced filtration equipment. 2. Families do not litter, actively use environmental protection items, and replace plastic belts with degradable materials.
3. People don't litter, and at the same time, * * * actively places environmentally-friendly trash cans on various road sections. People consciously organize themselves to publicize the importance of environmental protection.
In order to protect the environment, we should also do: save materials. The resources on the earth are already limited, coupled with profligacy, and now many countries are in a dilemma of material shortage. Protect trees, trees are the patron saint of green, with them there will be green, trees use green barriers to protect us from pollution, in front of him, carbon dioxide, benzene, will be eclipsed, showing how important it is to protect trees! Protect animals. Animals are our friends and good companions.
One day, under the shade of a tree, birds swarmed. What shall we sing in the bright sunshine? Singing that everyone is environmentally friendly, the environment has finally improved, the sky is bluer, the water is clearer, and a few animals in the past have appeared in the wild again. In the field, cranes flock, fish swim in shallow water ... smoke rises again, but I am no longer confused. What a beautiful day, there is no environmental pollution, but I can't forget the smoke.
2 1 century today, the earth environment on which human beings depend for survival is getting worse and worse, and disasters occur frequently, such as drought, flood, land desertification, earthquake, global temperature rise and tsunami.
According to the information I got before, I simply thought that environmental pollution was just smoke billowing, or garbage floating on the water, stinking, mosquitoes accumulating, dust flying and so on. However, this year, from the network, newspapers, radio and television, people's attention, I seem to understand; The reality is much worse. The drought in five southwest provinces is the reason we didn't even think of. Expert analysis: Because in the past 10 years, a large number of fast-growing eucalyptus forests were introduced from New Zealand in the southwest of China. In order to seek short-term economic benefits, they planted large areas for industrial paper making, which led to imbalance of species ecological environment and serious shortage of groundwater. As the saying goes, it takes ten years for trees to grow into big trees in two or three years. This kind of eucalyptus is a huge water pump and fertilizer pump, which constantly erodes the living space of other plant species, while the local people are immersed in the rigid and wrong guiding ideology that a variety of trees can protect the environment and continue to develop in a vicious circle. It is this unexpected reason that finally led to the once-in-a-century drought in southwest China. In the newspaper, I saw Premier Wen holding a dead seedling on the parched farmland and only said one sentence: "Learn from a bitter experience!" " "
Yunnan has vast virgin forests, many scenic spots and unique geographical environment. Since ancient times, it has been a beautiful place with a pleasant climate. However, in order to grow this kind of eucalyptus, a large number of virgin forests have been cut down. Imagine that these trees, which took decades or even hundreds of years to form, were destroyed just to meet the fastest paper-making speed. What a pity and sorrow.
It is said that another reason for the drought is that all rivers have built hydropower stations. I have my own feelings about this. Two years ago, the water surface of Xiangjiang River was so wide, but after the hydropower station was built in the upper reaches, the water volume in the lower reaches was obviously reduced, and even the riverbed was often exposed, which affected the water diversion project of urban tap water. I have these feelings, and those small fish and shrimps in the river should feel deeper.
A few days ago, there was another gutter oil incident in the newspaper. According to the newspaper, gutter oil is food that someone else has eaten and dumped into the trash can. After simple refining and processing, some unscrupulous merchants not only can't smell the odor, but also taste delicious after adding essence, but it is very harmful to human body. I dare not eat out casually now.
I am very worried about the increasingly serious environmental pollution, which affects all aspects of our lives.
9. The letter written by Xiaohe about environmental pollution.
I am a crystal clear river. There are many colorful pebbles at the bottom of the river, which are very beautiful. Those lovely small fish and shrimps in the river set me off with vitality. When summer comes, all the lively children come here to swim and have a water fight ... When winter comes and the river freezes, the children will come here to skate and catch the gyro ... I am very happy to see them happy.
However, one day, this happy and beautiful life was broken: many factories were built by the river, and sewage and toxic chemicals were discharged into the river all day ... So the fish and shrimp left my arms, the pebbles at the bottom of the river were dirty, and the children didn't come here to play. I am sad. What makes me sadder is that whenever I come from the surrounding villages, people frown and cover their noses and say angrily, "It is this river that killed all the crops in the village!" " "From then on, I began to hate people. Those people made me stink, let the fish and shrimp leave me, let the children not play with me, and let the villagers hate me. I cried sadly: "Why do people do this to me? What did I do wrong? How could they do that! "
Dear human friend: "'Leave us alone! We all want to be your friends! ' '
Poor stream.