Rivers dry up, forests decrease, animals become extinct, ozone layer destruction, greenhouse effect, etc. The greenhouse effect, acid rain, and ozone layer destruction are environmental effects derived from air pollution.

This kind of environmental effect derived from environmental pollution has a hysteretic nature and is often not easily noticed or expected at the time when the pollution occurs. However, once it occurs, it means that the environmental pollution has developed to a quite serious level.

Of course, the most direct and easily felt consequence of environmental pollution is the degradation of the quality of the human environment, affecting human quality of life, health and production activities.

For example, urban air pollution causes air pollution and increases people's morbidity rates; water pollution worsens the quality of the water environment and generally reduces the quality of drinking water sources, threatening people's health and causing premature birth or malformation of fetuses.

Serious pollution incidents not only bring health problems, but also cause social problems.

With the intensification of pollution and the improvement of people's environmental awareness, disputes and conflicts among people caused by pollution are increasing year by year.

At present, environmental pollution problems have occurred to varying degrees around the world. Aspects with global impact include atmospheric environmental pollution, ocean pollution, urban environmental problems, etc.

With the globalization of economy and trade, environmental pollution has increasingly shown an international trend. The problem of transboundary transfer of hazardous wastes that has emerged in recent years is a prominent manifestation in this regard.

The adverse effects of the destruction of the earth on humans include: the ecological environment situation is very severe. First, serious water and soil erosion, accelerated land desertification, decline in forest ecological functions, degradation of grassland resources, and still deteriorating aquatic ecological environment systems; second,

The water environment in agriculture and rural areas is seriously polluted, and food safety problems are becoming increasingly prominent. The third is the invasion of harmful alien species, the sharp decline in biodiversity, the loss of genetic resources, and the destruction of biological resources. The situation is not optimistic. The fourth is that due to the large size of our country's population, the natural population growth rate

is relatively high, leading to a continuous decline in the per capita share of important resources related to the national economy and people's livelihood, and the emergence of a resource crisis; fifth, ecological functions continue to decline, ecological security is threatened, industrial solid waste production increases sharply, and total air pollution emissions are still at a high level

, global warming, ozone layer destruction, etc.

The current situation of the ecological environment not only brings huge destructive power to the ecological environment, but also restricts the coordinated development of economy and society and slows down the process of socialism.

First of all, the huge damage to the ecological environment has caused us huge economic losses.

Take the floods that occur every year in our country as an example. After a disaster, tens of thousands of people leave us forever, large numbers of people become homeless, countless beautiful homes are destroyed, and countless fertile fields are destroyed.

Being flooded, coupled with traffic interruptions caused by road damage, etc., let us carefully estimate whether we have suffered huge economic losses?

Secondly, the arbitrary discharge of waste water, waste gas, waste residue and other wastes has led to the pollution of the atmosphere, rivers and land, and serious damage to the ecological environment. It has also seriously damaged the physical and mental health of the people; thirdly, due to the destruction of vegetation

Severe damage has resulted in serious soil erosion and increasingly serious land desertification, forcing many farmers to move away from home, and most of them have no fixed place to live, which aggravates social instability.

In fact, there are many negative consequences caused by the destruction of the environment.

② Causes of environmental pollution Generally speaking, environmental pollution can be the result of human activities, the result of natural activities, or the result of the simultaneous action of these two types of activities.

Such as volcanic eruptions, which emit large amounts of dust and sulfur dioxide and other harmful gases into the atmosphere, also causing pollution to the atmospheric environment.

But usually, environmental pollution is caused more by human activities, especially socioeconomic activities.

What we usually refer to is this type of environmental pollution originating from human activities.

The reason why human activities cause environmental pollution is because there is a fundamental difference between humans and other organisms: in addition to their own production, humans also engage in larger-scale material production, and the latter is something that all other organisms do not have.

Due to this, the intensity of human activities is much greater than that of other living things.

For example, when it comes to the use of water in an ecosystem, other organisms only use the amount that meets their survival requirements, while humans use water many times more than other organisms, so much so that some local ecosystems use all the water.

not enough.

The emission sources of pollutants are called pollution sources.

The situation of various pollution sources will be described in Section 4.

Environmental pollution can be classified from different perspectives.

According to the type of the polluted environmental system or the dominant factors in it, it can be divided into air pollution, water pollution, soil pollution, etc.; according to the social field where the pollution source is located, it can be divided into industrial pollution, agricultural pollution, traffic pollution, etc.;

According to the form or nature of pollutants, it can be divided into exhaust gas pollution, waste water pollution, solid waste pollution, noise pollution, radiation pollution, etc.