What are the methods scientists use to fix the ozone hole?

In order to solve the problem of the ozone hole, scientists have proposed the idea of using airplanes to fly high to the air to generate electricity from wind and the sun, and then discharge it at high pressure to produce ozone to repair the ozone hole, but it has not yet been realized.

As we all know, the ozone layer is protected from ultraviolet radiation, and the most effective way to repair the ozone hole is to reduce the damage, and the early use of freon refrigeration caused serious consequences, which are the catalysts for the destruction of the ozone layer.

Using our method of synthetic ozone, ozone is transported to the ozone layer by rockets, and the ozone is released when it reaches its destination.

The ozone layer heals itself, so as long as we prohibit any production activities related to freon and all kinds of activities that destroy the ozone layer, the ozone layer will slowly recover.

The ozone hole is a phenomenon in which the ozone layer in the atmosphere is destroyed and reduced due to the diffusion and erosion of air pollutants. The ozone layer is located 20-25 kilometers above the ground, and is the most effective "umbrella" to fight against solar radiation and ultraviolet rays and protect the earth's biosphere

In 1982, scientists first discovered ozone reduction over Antarctica, followed by similar ozone holes over the Arctic and Tibetan sky. Causes of the ozone hole: A type of hydrochlorofluorocarbons (HCFCs), which are used in large quantities as refrigerants, aerosols, blowing agents, and other chemical agents, are the "main culprits" of ozone reduction

In addition, cold is also the key to the thinning of the ozone layer, which is why the ozone hole appeared in the coldest regions of the Earth's North and South Poles in the first place. The data suggest that the ozone hole is still likely to continue to expand, and that it will take at least 20 years for the Antarctic ozone layer to recover significantly, and that the true oxygen hole will not be completely eliminated until 2050.

It refers to the phenomenon of the destruction and reduction of the atmospheric ozone layer due to the diffusion and erosion of unprecedented air pollutants, especially aerosol pollutants such as nitrogen oxide and halogenated hydrocarbons.

Causes of the ozone hole: A type of hydrochlorofluorocarbons (HCFCs), which are widely used as chemical agents such as refrigerants, sprays, and blowing agents, are the "main culprits" of ozone reductionIn addition, cold is also the key to the thinning of the ozone layer, which is why the ozone hole appeared in the coldest regions of the Earth's North and South Poles in the first place.

The hole in the ozone layer threatens the survival of humanity.

For more than 10 years, it has been studied by scientists; Atmospheric ozone decreases by 1 per 1The amount of ultraviolet light that hits the ground increases2, and the number of human cancers increases3, and it is also attacked by diseases such as cataracts, immune system deficiencies, and failure to thrive. Now living in the southern tip of Chile, near Antarctica, the residents of Cape Helena, have tasted the bitterness, as long as they go out of the house, they must put on sunscreen and sunglasses on the skin that cannot be covered by clothes, otherwise half an hour later, ** will be sunburned bright pink, accompanied by itching pain; The flock is more likely to suffer from cataracts and is almost completely blind.

It is said that the rabbits there are all blind, and the hunters can easily pick up the rabbit ears and take them home, and the fresh fish caught in the river are also blind.

By extension, if the ozone layer were completely destroyed, the sun's ultraviolet rays would kill all life on land, and humanity would be "wiped out", and the earth would become a barren land without any life. It can be seen that the hole in the ozone layer has threatened the survival of mankind.

In 1987, the major industrial countries signed the Montreal Convention, which required the phase-out of the use of chemical substances that harm the ozone layer. And now, there's a healthier third generation of refrigerants: ammonia. Ammonia is a naturally occurring substance, composed of hydrogen and nitrogen, and has a negligible impact on the environment.

The main cause of ozone layer depletion is the result of atmospheric pollution by man-made chemicals chlorofluorocarbons and halons. Chlorofluorocarbons, i.e. freon (CFC). It is used in the production of foam plastics, hair care mousses, fire extinguishing agents, insecticides, and refrigerants.

Once released, chlorofluorocarbon gas slowly rises to the top of the ozone layer in the Earth's atmosphere. There, ultraviolet light breaks down the chlorine atoms in the chlorofluorocarbon gas, which in turn take away one of the oxygen molecules in the ozone, turning the ozone into oxygen, thus losing its ability to absorb ultraviolet light. Nitrogen oxide gas emitted by civil and military aircraft flying at the top of the troposphere is also a catalyst for the destruction of the ozone layer.

The uncontrolled use of chemical fertilizers in agriculture will produce a large amount of nitrogen oxide, and the combustion of various fuels will also produce a large amount of nitrogen oxide, which is a factor that destroys the ozone layer and will pose a potential threat to the survival of life on the earth. Another chemical used to extinguish fires is called bromofluoroalkanes (halons). The emission of this chemical into the atmosphere and into the stratosphere will also reduce the ozone concentration in the stratosphere, resulting in an increase in the amount of ultraviolet radiation through the stratosphere, endangering humans and the ecological environment.

To put it simply, the ozone hole is formed because of the use of chlorofluorocarbons (also known as refrigerants).

How is the Antarctic ozone hole formed?

Studies have shown that human activities, especially the heavy use of freon as a refrigerant and atomizer, are an important cause of the Antarctic ozone hole. The freon that leaks into the atmosphere during human production and life is decomposed into chlorine atoms by ultraviolet light in the upper atmosphere, and the chlorine atoms decompose ozone. At an altitude of 20 km above Antarctica, very low temperatures tend to form clouds of ice crystals, which exacerbate the catalytic effects of chlorine and decompose large amounts of ozone.

Antarctica's closed atmospheric circulation system leaves decomposed ozone unreplenished. Therefore, chemical reactions in the atmosphere and atmospheric movements are closely related to each other, forming an ozone hole over Antarctica.

The hole in the ozone layer in the earth's atmosphere will be harmful to life on the earth, and this issue has aroused widespread concern and universal attention of all countries. Now, countries around the world are committed to reducing or even stopping the production of freon, and many countries' ** and international environmental protection organizations have also asked manufacturers of air conditioners and refrigerators to reduce and stop using freon as a refrigerant, and instead promote the use of green and environmentally friendly fluorine-free products, and call on people to buy fluorine-free products. In fact, each of us can contribute to the preservation of our planet in our daily lives.

Chemicals such as chlorofluorocarbons emitted into the atmosphere in human production and life react with ozone after diffusion into the stratosphere, resulting in a decrease in ozone content in the ozone layer reaction zone.