If deserts all over the world become oases, what impact will it have on the climate?

As we all know, 70% of the earth's surface where we live is ocean, and the land area only accounts for 30%. Among these 30%, there are a lot of harsh terrain such as deserts, which is difficult for human beings to develop and utilize. At present, the desert area in the world has reached an astonishing 30 million square kilometers, accounting for 20% of the earth's land area, and with the influence of human activities, the desert area is still expanding year by year.

This is also one of the reasons why we often advocate afforestation, so what will happen to the earth if all the deserts on the earth become forests?

In terms of afforestation, China can be said to have the most say in the world. In 20 18, China basically turned the Mu Us Desert, one of the four major deserts in China, into a forest with a total area of 42,200 square kilometers, of which 30% was covered by plants and 80% was successfully managed.

On April 22nd, 2020, it was officially announced that the desertification control rate in Yulin reached 93.24%, which meant that the Mu Us Desert completely disappeared on the map of China.

In addition, the Kubuqi Desert, with an area of 654.38+860,000 square kilometers, has also been half afforested by us ... All these prove the efforts of generations of China people and the diligence of China people. The UN Secretary-General also publicly praised China's desert control measures at the UN General Assembly, and said that other countries can learn from China's desert control model.

If the whole world vigorously carries out desertification control, it is believed that the global forest area will be greatly increased and the global greenhouse effect will be controlled. But if all the deserts in the world are really turned into forests, is it good for the global environment?

The desert turned into a forest. On the surface, turning desert into forest can not only alleviate global warming, but also purify the air environment on earth, which has many benefits, but when you think about it carefully, there are also many problems. First of all, the increase of forest area directly affects the ratio of oxygen and carbon dioxide in the earth's atmosphere. Now the values of carbon dioxide and oxygen on the earth are constant, and plants absorb carbon dioxide through photosynthesis to produce oxygen.

Therefore, the increase of forest will directly lead to the decrease of carbon dioxide content and the increase of oxygen content in the atmosphere. By then, the original proportional balance between oxygen and carbon dioxide will be broken, and the consequences will be unimaginable.

Secondly, the main cause of global warming is carbon dioxide. However, when carbon dioxide decreases, the earth is likely to have obvious cooling, which will lead to all kinds of extreme weather, seriously affect the cultivation of food crops, lead to a substantial reduction of human food crops, and even lead to a large-scale food famine.

Then the appearance of giant animals, arthropods generally breathe through the trachea in the body, so when the oxygen content in the atmosphere increases greatly, these arthropods will become very large.

For example, in the Carboniferous period 300 million years ago, the oxygen content was very high at that time, and the insects at that time were also very large. It is reported that at that time, the wingspan of dragonfly was about 1 m, making it the largest insect in the history of the earth.

In other words, when the oxygen content increases, a large number of giant insects will appear on the earth, and a "human-insect war" may also appear.

Although oxygen is an essential substance for us, the more oxygen, the better. Too much oxygen will directly lead to oxygen poisoning.

Because high-content oxygen will produce oxygen free radicals after entering the human body, these oxygen free radicals will kill all kinds of cells in our body, cause metabolic and functional disorders of our organs, and cause damage to our body functions.

Deserts can't all be turned into forests. There are two main reasons for the formation of desert, one is natural and the other is man-made. First, natural factors are mainly reflected in the influence of climate and topography. In the final analysis, the desert is formed because of lack of water and scarce precipitation. For example, the latitude of this area is affected by the subtropical high belt, so the precipitation is scarce, or it is blocked by mountains, which hinders the warm and humid airflow. It is not difficult to find that deserts formed by natural causes are often caused by multiple natural factors, and it is relatively difficult to manage them.

Secondly, human factors are mainly reflected in unreasonable human behavior, including overgrazing and deforestation, which leads to desertification of fragile ecological environment and the formation of desert. Many semi-desert areas or grasslands in the world have become deserts after improper reclamation and intensified human behavior.

Different from natural deserts, these man-made deserts have good climatic conditions, which is a good example compared with good governance, such as the Mu Us Desert.

To sum it up. The ecological chain of the earth is linked one by one. If the link of desert is missing, it will inevitably lead to the abnormality of ecological chain, which may cause a series of butterfly effects. There is a saying that existence is reasonable. Everything on the earth is reasonable and has its reasons. If there is no desert on the earth, it will naturally have a great impact on the earth.