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Shocking environmental pollution can be seen everywhere: dark skies, polluted air, cross-flowing sewage, and ...... garbage sieges, even in the ice and snow of the Antarctic penguins, DDT and other pesticide residues have been found, Mount Everest is everywhere? The blue sky and clear water have become a childhood memory and unattainable dream for many people.
The Antarctic ozone hole is caused by excessive use of freon in the past and its emission into the air, which will irradiate a large amount of ultraviolet rays on the earth, increase the incidence of cancer, and increase the temperature of the earth; Red tide occurs in many waters because domestic and industrial wastewater enters the waters, which are rich in nitrogen and phosphorus, which causes eutrophication, which will lead to the death of fish and shrimp, and will also damage people's health through bioaccumulation; The destruction of virgin forests in the United States is man-made, and many trees have been cut down. As a result, many animals have been displaced, and some species have even perished.
Lop Nur, the Disappearing Fairy Lake", that is, Lop Nur was originally a very beautiful lake, but now it has disappeared and become a desert. This is a tragedy of man-made destruction of the ecological environment. With a strong voice, this reportage warns the people of the world to establish the awareness of environmental protection among the whole people and do a good job in ecological protection.
Cutting down trees and digging up river sand.
The cause of animal killing and environmental pollution is mainly caused by human factors. A large number of "three wastes" discharged by people in production and life, as well as sudden accidents in some industrial and living facilities, as well as untreated wastes in hospitals, can cause environmental pollution, and can cause harm in serious cases. During the war, due to the massive use of various ** to kill and injure residents and destroy residential areas, it can cause environmental pollution and destruction.
For example, air pollution in cities causes air pollution, and people's morbidity increases. Water pollution deteriorates the quality of the water environment, and the quality of drinking water sources generally declines, threatening people's health, causing premature birth or malformation of the fetus. Serious pollution incidents not only cause health problems, but also social problems. With the intensification of pollution and the improvement of people's environmental awareness, the disputes and conflicts among people caused by pollution are increasing year by year.
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The Chernobyl nuclear accident left the area uninhabitable for 300 years.
Excessive carbon dioxide emissions have led to melting of ice and snow in the Arctic and Antarctic, and rising sea levels.
Overgrazing in northwestern China has led to increased desertification, and Taklamakan has become the second most mobile desert.
Water pollution in southern China and the invasion of alien species such as water hyacinth and Eupatorium spp. have led to a significant reduction in native plant species.
Tropical rainforests are disappearing at a rate of 50 hectares per minute. There are 380 species of birds, 250 species of mammals endangered globally, an average of one plant extinct per hour, and 1 3 species of organisms extinct every day. The direct economic losses caused by land desertification amount to more than $42 billion per year!
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Littering, spitting, driving...
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Cutting down trees. Misuse of chemistry. Car exhaust...
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Examples of environmental damage:
1. A large number of three wastes discharged by people in production and life, as well as sudden accidents in some industrial and living facilities, as well as untreated wastes in hospitals.
2. A large number of various ** causes environmental pollution and damage.
3. More than 80,000 square kilometers of tropical rainforest in Malaysia have been destroyed by oil palm plantations.
4. The natural landscape of Qinglong Mountain was destroyed, and the natural landscape of Tengchong Yunfeng Mountain was destroyed due to mining of ore.
5. Deforestation and land reclamation have caused desertification, development of real estate buildings has destroyed forest fields, and factory discharge of wastewater has made the originally crystal clear rivers polluted and smelly.
Manifestations of ecological and environmental damage:
Climate disasters are increasing, global warming is exacerbated, glaciers are melting, sea levels are rising accordingly, and coastal lowlands are threatened by seawater inundation.
The water circle is seriously polluted, and the biggest problem in the water circle is the lack of fresh water resources, resulting in water and water pollution, but the development of industry, the use of chemical fertilizers, pesticides and a large number of chemicals in life have made the pollution in the water circle develop to the current degree of harm.
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For example, the pollution level of the seven major systems in China is in order: Huai River, Haihe River, Songhua River, Zhu and Yellow River, Songhua and 42% of them exceed the water quality of unpotable water, and 75% of the country's cities and water prey water quality is out of function.
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For example: disposable wooden chopsticks, mobile phone radiation, factory discharge of sewage, exhaust gas, automobile exhaust, etc.
Nature is the home of human life, and human survival and development must depend on the natural environment and natural resources. Due to the exploitation and utilization of nature by human beings, the original living environment has been changed, and the interdependence between man and nature has become an antagonistic relationship, the natural environment has been seriously damaged, the ecological balance has been broken, and resources have been overexploited.
Since China's reform and opening up, due to the extensive use of agricultural science and technology in agricultural production, agricultural science and technology have affected the natural environment of rural areas, the original ecology of rural areas has lost balance, the large-scale development of rural resources has caused serious waste, the relationship between man and nature has become the relationship between subject and object, the ethical order of harmonious coexistence between man and nature has been seriously damaged, and natural ecological ethics is facing a serious crisis.
Environmental Pollution Incidents:
1. The Maas Valley smog incident.
Beginning on December 1, 1930, the whole of Belgium was covered in fog due to abnormal climate changes. There is also an inversion layer in the Maas Valley, where the fog layer is particularly thick. On the third day of this abnormal climate change, thousands of residents of this valley suffered respiratory illnesses and 63 deaths, double the normal death toll for the same period.
Symptoms include men and women of all ages, and symptoms are: tearing, sore throat, hoarseness, cough, shortness of breath, chest tightness, nausea, and vomiting. Cough and shortness of breath are the main symptoms.
2. The Japanese rice bran oil incident.
The rice bran oil incident in Japan, one of the world's eight major environmental pollution incidents, was a typical pollution incident caused by POPS, which caused serious loss of life and property at that time, and caused great social panic. The specific course of the incident is as follows: In March 1968, hundreds of thousands of chickens in Kyushu, Shikoku and other regions of Japan died suddenly.
After investigation, it was found that it was feed poisoning, but because the poison was not identified at that time, it was not investigated.
However, in June and October of that year, 4 more people went to the Kyushu University Affiliated Hospital for an unexplained ** disease, and the initial symptoms of the patients were acne-like rash, black nails, **pigmentation, conjunctival hyperemia, etc. In the following three months, 325 patients from 112 families were diagnosed, and since then they have continued to appear throughout the country.
By 1977, more than tens of thousands of people had died from the disease, and in 1978, the total number of confirmed patients reached 1,684. In 1979, the same tragedy was repeated in Taiwan Province of China, namely the "Taiwan Oil Syndrome Incident".
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1. The Bohai Sea and the East China Sea are more polluted in the four major sea areas, and the South China Sea is lighter.
2. The deterioration of the ecological environment of fishery waters has not fundamentally changed, and is showing an aggravating trend.
3. Urban environmental pollution is aggravating.
4. Urban ground water pollution is generally serious and shows a deteriorating trend. The vast majority of rivers are polluted to varying degrees.
The theme of the Environment Day for the past years is 1974: There is only one Earth.
1975: Human habitation 1976: Water, an important resource for life.
1977: Concern about ozone layer depletion, soil erosion, soil degradation and deforestation: Development without destruction.
Year: For children and the future – development without destruction.
Year: A new 10 years, a new challenge – development without destruction.
Year: Protecting groundwater and the human and human food chain; Prevent contamination by toxic chemicals.
Year: Commemorating the 10th anniversary of the Stockholm Conference on the Human Environment and raising environmental awareness.
Year: Managing and Treating Hazardous Waste to Prevent Acid Rain1996: Our Earth, Our Home, Where We Live.
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Examples of environmental damage include exhaust emissions, sewage discharge, discarding of used batteries, littering, trampling on lawns, and deforestation. Due to the intensification of human development and utilization of the environment, the original ecological environment has been changed, and once the environment is seriously damaged, it is difficult to restore the original state.
How individuals can do a good job of environmental protection.
Minimize the use of white plastic and disposable items on weekdays, and use cloth bags or biodegradable plastic bags when shopping.
Choose low-carbon travel and drive as little as possible, because car exhaust is a harmful substance, which can reduce the harm to the environment caused by car exhaust emissions.
Do a good job of garbage classification, do not litter, garbage classification can promote the effective recycling of resources and improve the environment, reduce environmental pollution.
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1.Logging, destruction of forests.
2.Overgrazing, destruction of playgrounds.
3.Sewage discharge, polluting rivers.
4.Emissions of greenhouse gases.
5.Hunting, making species extinct.
6.Destruction of the ozone layer.
7.Flood irrigation makes the soil salinized.
8.Use biochemical ** to pollute the environment.
9.Produce genetic organisms that threaten the ecological balance.
10.Groundwater is pumped to bring the surface down.
The exploitation and utilization of resources and energy resources for the survival of human beings is absolutely necessary, but all development and utilization should be comprehensively and scientifically considered from the balance of the entire natural world, especially the ecosystem of the earth's environment, that is, the so-called biosphere, and then achieve harmony between man and nature on the basis of protecting the natural environment and maintaining ecological diversity. At present, it is necessary not only to strengthen and expand those ecosystems with primitive characteristics, that is, those that are less affected by human beings, to maintain their original natural appearance through artificial protection and reconstruction, and to maintain the balance of various elements within the ecosystem, but also to pay attention to the valuable experience gained by human beings in understanding the toxicity of chemical substances. For all kinds of substances, from production to the whole process of disposal, we should consider a safety measure to prevent environmental pollution, and we should seek pollution-free production methods to produce non-toxic chemical products, which is obviously a higher and more difficult task for chemists. >>>More
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