Environment

What is the environment? What do we think of through the word “environment”? Natural environment, then we can think of environmental pollution. The rapid development of the industrial economy in the 20th century has brought a highly developed material civilization to mankind, but mankind is also in a lot of contradictions. Environmental problems have developed from a small local area to a regional or even global one. Obviously The impact is wider and more profound.

Global warming

The temperature of the earth is quietly rising, and has reached a level that people can perceive. Its harm should not be ignored. It will cause the melting of polar glaciers, it will bring frequent storms, it will lead to the reduction of biological species, and it will also cause sea levels to rise and flood coastal areas.

Ozone layer destruction

Since the middle of the 20th century, it has been found that the ozone concentration in the Arctic Circle has decreased significantly, and the ozone layer in the Antarctic Circle has also appeared hollow. The serious consequences of the destruction of the ozone layer can not be ignored: it will increase the incidence of human skin cancer and cataract, damage the human immune system, it will also seriously damage the marine and terrestrial ecosystems, and hinder the normal growth of plants.

Reduced biodiversity

The biological chain of animals and plants is destroyed, and their survival will definitely affect the fate of human beings. The end result of human beings threatening the survival of other organisms will be threatening their own survival.

Acid rain spread

Acid rain is corrosive. Landing on the ground will damage the growth of crops, leading to withering of trees, acidification of lakes, death of fish, damage to buildings and places of interest.

Sharp decline in forest

The reduction of forests has led to serious soil erosion, frequent floods, reduced species, and climate change.

Desertification

Excessive grazing and heavy use of light farming have gradually degraded the grassland. Construction activities such as land reclamation, mining, and road construction have a great impact on the land, coupled with continuous erosion of soil and water loss. The direct consequence of land desertification is the poverty of farmers.

Water pollution

More and more sewage produced by population expansion and industrial development has finally exceeded the tolerance limit of natural water bodies, so the clear water body turned black and smelly, bacteria breed, fish died, and algae grew more severe , the water that is sufficient to nourish the human body often causes people to get sick due to the presence of toxic substances, even to death. Of course, industrial and agricultural production is also greatly damaged due to the deterioration of water quality. Pollution of the water environment has strained the already scarce water resources. The shortage of water resources, the pollution of the water environment and the flood disasters constitute a water crisis sufficient to destroy humanity.

Air Pollution

The most common air pollution is caused by the dust generated during the coal combustion process. Fine suspended particles are inhaled into the human body and are very likely to cause respiratory diseases; modern cities also have photochemical smog, which is due to the large amount of chemical substances entrained in industrial exhaust gas and automobile exhaust. They interact with sunlight to form an irritating smoke that can cause eye diseases, headaches, and difficulty breathing.

Solid waste

Solid waste, including municipal solid waste and industrial solid waste, is increasing with the growth of population and industrial development. It has become a major disaster for the earth, especially for cities. Garbage contains various harmful substances. Arbitrary storage not only occupies land, but also pollutes the surrounding air, water bodies, and even groundwater. Some industrial wastes contain flammable, explosive, toxic, pathogenic, radioactive and other toxic and harmful substances, and the harm is even more serious.