What are the causes of environmental damage?

Excessive population growth, the earth's various natural resources can not meet the needs of population growth, and can only be at the expense of natural resources, polluted air, polluted untreated water, a large number of heavy metals and various chemical pollutants discharged into the soil.

Environmental problems are mainly manifested in environmental pollution and ecological damage. Environmental pollution mainly refers to air pollution, water pollution, soil pollution, solid waste pollution, noise pollution, radioactive pollution, marine pollution, etc., and ecological damage mainly refers to soil erosion, land desertification, soil salinization, forest reduction, water depletion, species reduction, etc.

There are mainly the following concentrated behaviors:

1. Exhaust emissions.

It is a serious source of pollution of the atmospheric environment, and various exhaust gases emitted in the combustion and production process of industrial enterprises.

2. Sewage discharge.

Polluting surface water, such as amber and rivers, leads to poor water quality and even affects the function of water bodies; Polluting the soil, resulting in soil acidification, salinization, etc.

3. Deforestation.

destruction of primary forest resources; Failure to conserve water, resulting in reduced river flows; increased damage from drought and flood; Soil erosion is intensifying.

4. Excessive mining and beneficiation.

It has caused the destruction of land resources, led to the deterioration of the agricultural production environment, the imbalance of ecological balance, frequent floods and droughts, and affected the development of production in various industries.

5. Garbage siege.

6. Dry up and fish.

Draining the pond to catch fish is only for short-term interests, not for long-term planning.

7. Discard waste batteries.

The hazards of old batteries are mainly focused on the small amount of heavy metals contained in them, such as lead, mercury, cadmium, etc. These toxic substances enter the human body through various ways, and it is difficult to eliminate them after long-term accumulation.

8. Over-catching birds.

Mass deaths, reduced reproductive capacity, leading to extinction, population declines, leading to genetic defects.

9. Overexploitation of groundwater.

From a regional point of view, environmental problems in urban areas are mainly manifested in environmental pollution, and in rural areas, ecological damage is mainly manifested. From a global point of view, the environmental problems of developing countries are more serious than those of developed countries, first, developing countries are generally in the initial stage of economic development, while the population is growing rapidly, and the environment is under the dual pressure of development and population; Second, limited by the economic and technological level, developing countries do not have sufficient capacity to carry out environmental protection, and cannot solve environmental problems in a timely and adequate manner after they occur; Third, developed countries have taken advantage of the needs of some developing countries for economic development to transfer heavily polluting industries to developing countries. And some environmental issues are global.

The main causes of environmental problems are population pressure, irrational use of resources, and one-sided pursuit of economic growth.

The act of causing environmental damage is caused by human activities and better survival, and there is no human place, the environment is pure and natural. Wherever people go, they are polluted. Animals and plants themselves have dissolved into nature, and only humans are alien.

1. Dig river sand.

Over-exploitation of groundwater, over-exploitation and beneficiation, artificially destroying geological landforms, resulting in the deterioration of the natural environment.

2. Cutting down trees, destroying forests and wetlands, and causing abnormal climate change.

3. Hunting and killing wild animals.

The imbalance of the natural biological chain has led to the deterioration of the ecological environment.

4. Establish polluting factories that emit a large amount of polluting gases and cause air pollution.

5. Industrial wastewater is not up to standard, polluting water resources.

As follows:

1. Environmental damage! Pollution of the air (e.g. burning of garbage, war), pollution of water sources (e.g. chemical plants, paper mills).

2. Pollution of the ecological environment! Plants and animals face extinction (e.g., whaling, hunting of Asian elephants) and deforestation (e.g., clearing of trees, deforestation and farming).

3. The destruction of the entire earth's environment by war! The main ones: nuclear, biochemical, (conventional missiles** are not counted for the time being).

4. Request! People all over the world excavate and exploit various non-renewable resources of the earth (such as oil, coal).

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.

1. Damage to the environment: Since the environment is one of the components of the ecosystem, its changes will affect the stability of the ecosystem. There are many examples of breaking the balance of the ecological environment due to the destruction of the environment, such as:

formation of lactomar eutrophication; mercury poisoning in Japan; Fluoride destroys the ozone layer; deterioration of the ecological environment of the Aswan Dam; the evil results of the application of "666" and "DDT"; the "wet-room effect" of the earth, etc.

2. Destruction of vegetation, vegetation with forests as the main body is the lever of terrestrial ecological balance, and the most ecological disasters caused by the destruction of vegetation on the earth, such as the black storm that occurred in the western United States in 1934, destroying more than 4,500 acres of cultivated land; In 1963, a major storm occurred in the agricultural reclamation area of the former Soviet Union, destroying more than 300 million acres of land; The destruction of forests also led to the extinction of the ancient Babylonian civilization; The Thar Plain, between India and Pakistan, has been reduced to a desert due to deforestation, covering an area of 650,000 square kilometers; The deterioration of the ecological conditions in the Yellow River Basin in China stems from the destruction of forest vegetation in the upper reaches of the Yellow River, and the Yangtze River will become the second Yellow River. The deterioration of ecological conditions in the northeast forest area is mainly due to the unreasonable logging and over-logging of forests in the southwest and northeast forest areas.

3. Destruction of the food chain: Examples of disruption of the food chain and disruption of the ecological balance are: forest diseases and pests caused by overhunting natural enemies of insects; In India, the killing of otters in large quantities has increased the number of diseased fish and reduced fish production; In Australia, where animal husbandry is developed, the rescue of dung beetles caused by cattle dung mulching grass is more new.

Of course, in the biosphere, there are often several triggers coexisting.

Fourth, the depletion of water resources.

Water is the source of life, and water seems to be everywhere. However, the shortage of drinking water threatens the survival of humanity. At present, the world's annual water consumption has reached 7 trillion cubic meters, coupled with the discharge of industrial wastewater, the abuse of chemical fertilizers, the arbitrary dumping of garbage, and the sharp increase of domestic sewage, turning rivers into gutters and lakes into sewage lands; Deforestation has caused a large amount of water to evaporate and run, and drinking water is decreasing dramatically.

5. Destruction and pollution of marine resources.

It is estimated that 100 million people around the world consume fish as their main protein**. However, in recent decades, the overexploitation of marine living resources and the increasingly serious pollution of the oceans by human beings have threatened to significantly degrade the productivity of the oceans and the quality of the marine environment on a global scale.

1. Air pollution: The situation facing the atmospheric environment around us is very severe, and the total amount of air pollutant emissions remains high.

2. Water pollution: China is a country with serious drought and water shortage, and people are still wasting water resources while making scientific progress.

3. Garbage disposal: China's annual production of industrial solid waste reaches 100 million tons, and the comprehensive utilization rate is about 46%. China's annual production of municipal solid waste is 100 million tons, which meets the requirements for harmless treatment of less than 10%. White contamination from plastic packaging and agricultural film has spread across China.

4. Biological destruction: China is a country with serious damage to biodiversity, with 4,000-5,000 endangered or near-endangered species of higher plants, accounting for about 15%-20% of the total number of species owned by China, higher than the world average of 10%-15%.

There are three aspects of environmental pollution to people's health: acute harm, chronic harm, and long-term harm.

1. Acute hazards.

Pollutants are concentrated in high concentrations in a short period of time, or several pollutants can be combined into the body to cause acute harm to the human body.

2. Chronic hazards.

Chronic harm mainly refers to the harm caused by the continuous action of small doses of pollutants on the human body.

3. Long-term hazards.

The harm of environmental pollution to the human body is generally manifested after a long incubation period.

The most direct and easily felt consequence of polluting the environment is to degrade the quality of the human environment and affect the quality of human life, physical health and production activities. At present, the harm to human health caused by environmental pollution on a global scale has attracted more and more attention. Environmental pollution can cause direct damage and impact on ecosystems, including:

Water pollution, air pollution, noise pollution, radioactive pollution, etc.

What we can do is to advocate and publicize the protection of the environment, analyze and investigate environmental protection measures on the spot, protect the environment from small things, and supervise others to protect the environment. These are all four things we can do to protect the environment.

Here I will take a look at the causes of pollution in the water environment.

There is a problem of water pollution.

What are the root causes of pollution in rivers and lakes? There are three main causes: exogenous pollution, endogenous pollution and loss of ecological functions of water bodies.

The first is exogenous pollution, mainly from industrial wastewater, domestic sewage and initial rainwater.

Wastewater discharged directly or secretly from factories and domestic sewage from cities are directly discharged into natural water bodies through pipe networks, or overflow into natural water bodies when sewage treatment plants are overloaded and their treatment capacity is insufficient, thereby destroying water quality and causing serious river and lake pollution. When it rains, the initial rainwater reaches the ground through the atmosphere, and when it washes the ground, it brings harmful substances such as road pollutants and heavy metals into the pipe network and discharges them into natural water bodies, further aggravating the pollution of rivers and lakes. The exogenous pollution composed of industrial wastewater, domestic sewage and initial rainwater is the root cause of water environmental pollution.

This is followed by endogenous pollution, mainly from river and lake sediment, decaying aquatic flora and fauna, and coastal garbage.

Sediment pollution is when the water body is polluted, some pollutants in the water are stored in the sediment through precipitation or particulate matter adsorption, and re-released under appropriate conditions, becoming a secondary pollution source. In addition, the decay and decomposition process of animals and plants in the water will have a certain impact on the water quality, which may cause hypoxia in the water body, which will lead to pollution. The entry of coastal garbage into water bodies will further increase pollution.

Finally, there is the loss of ecological functions of water bodies. When the exogenous pollution and endogenous pollution are too heavy, the ecological function of the water body is destroyed, the water ecological function is lost, the self-repair and regulation ability is reduced, and the pollution is aggravated, forming a vicious circle.

According to incomplete statistics, at present, more than 90% of the water bodies in cities across the country are polluted to varying degrees (data** in the "River and Lake Pollution Status and Treatment Countermeasures" released by the Water Facilities Management Institute of Zengcheng District, Guangzhou in January 2019). In addition to more scientific development of urban water environment governance, as a member of the earth, our future destiny is closely related to the development of the ecological environment, and we should treat the ecological environment like life, implement the most stringent ecological environmental protection system, and firmly follow the civilized development path of production development, affluent life and good ecology, so as to build a beautiful China, create a good production and living environment, ensure global ecological security, and provide a strong guarantee for the sustainable development of mankind in the future!

1. Air pollution and the "greenhouse effect".

2. The ozone layer is destroyed.

3. Soil erosion and soil degradation.

4. Expansion of land desertification.

5. Water pollution and water crisis.

6. Forests are cut down indiscriminately.

7. Biological species have decreased dramatically.

8. There is a serious shortage of mineral resources.

Solution: 1. Accelerate the construction of environmental protection infrastructure.

In order to fundamentally improve the many deficiencies in China's environmental protection, we must first accelerate the construction of environmental protection infrastructure, continue to make breakthroughs in the introduction of modern and national pollution prevention and control technology, and always adhere to the synchronous planning, construction and use go hand in hand, and should appropriately reserve the space for advanced progress, and accelerate the construction of a series of air pollution monitoring facilities such as recycling construction projects and urban sewage treatment.

2. Continuously increase environmental protection efforts and attach importance to the development of environmental protection work.

The broad masses of the people are the main force in environmental protection, and we must always rely on them to carry out environmental protection work in place, so as to fundamentally enhance the nation's determination and confidence in environmental protection. In addition, environmental planning and law enforcement supervision should be carried out in a unified manner, and the corresponding environmental protection departments should always make environmental policy assessment a top priority.

Continuously improve the management efficiency and supervision ability of environmental protection, ensure effective response and timely solution to the environmental pollution threat caused by economic development and industrial clusters, and at the same time pay attention to the necessary biological remediation methods to achieve sound and rapid economic development and progress.

3. Strengthen citizens' awareness of environmental protection and promote scientific and technological innovation in environmental protection.

On the one hand, to strengthen the citizens' awareness of environmental protection is to consider the overall consideration in the economic and social development, while adhering to low-carbon and environmentally friendly production, but also to take into account the optimization and upgrading of the development mode, more to strengthen the general public's awareness of environmental protection of the active publicity and education activities, from the perspective of the basic national policy of environmental protection and the height of the sustainable development strategy as the starting point and foothold, and gradually awaken the awareness of environmental protection of the general public and promote their active participation in the ranks of environmental protection;

On the other hand, the promotion of environmental protection of scientific and technological innovation means unremitting development and improvement of environmental protection technology and strict testing and repeated demonstration, always adhere to the enterprise as the main body, the application of advanced technology to the field of production and ultimately the incidence of environmental pollution within a moderate range, therefore, I hope that the state can give strong financial policy support and around the development and research of environmental protection technology.