Chapter 64

In the garage of the city police station, Qin LAN, together with other special police, is sorting out the equipment. Today, they have a field mission to receive a batch of equipment from the railway station.

"Li Tou, what equipment are we going to receive today?" When Qin LAN checks the gun in his hand, the team-mates next to him ask the leader curiously: "usually receiving materials, aren't they all from the city government? Why do we need our SWAT team to receive equipment today? "

"You didn't listen to team Ding's briefing with the political commissar just now? It's a batch of vital materials for the shelter, so this time it's an armed escort, and we need the special police team to receive it. " The leader known as Li Tou is also a field equipment, while checking the ammunition while answering the questions of his subordinates.

But after hearing Li Tou's answer, Qin LAN had some questions. She asked Li Tou, "Li Tou, shouldn't escorting and escorting be done by the armed police? How did we get the Swat on? "

In Yan state, the armed forces controlled by the state are divided into three parts: the army, the police and the armed police.

Among them, the army is responsible for external operations and safeguarding national territorial sovereignty, while the police is responsible for maintaining social order and cracking down on crimes at home. The armed police is between the police and the army, not belonging to the police, but is established according to the requirements and establishment of the army, mainly responsible for local security and handling emergencies.

In terms of functions, escorting important materials should really be a matter for the armed police.

Li Tou himself has some doubts about this problem, but now that the tasks have been assigned, it is impossible for them to say that they will carry out the task after making it clear.

So Li Tou can only say to Qin LAN: "maybe it's the ghost that the city government is doing. Now it's different from before. I'm afraid some things don't come according to the rules."

Li Tou's words make Qin LAN don't know what to say. She just wants to ask why it's not the armed police escort, but the special police. But what Li Tou said is related to the careful thinking of some people in the city government, which inevitably makes Qin LAN feel helpless.

Although the country is still in operation and the government agencies are still in normal operation, the end is the end. Although many things look the same as before, they are actually different.

Li Tou may also feel that what he said is not appropriate, so he patted Qin LAN on the shoulder and said to her, "don't think so much, maybe it's just that the armed police can't pull out their hands? It's not like this has never happened before. Carry out the task first, and think about it when you come back. "

Hearing what Li Tou said, Qin Lan also pressed down the messy ideas in her mind and focused on the task.

The disaster caused by the impact of meteorite destroyed the original human civilization. Although there are not many survivors now, they just survived.

For these survivors, the most important thing is to survive. As for the reconstruction of human civilization, although the country is carrying out post disaster reconstruction, the progress is very slow. It is still a very long thing to really rebuild human civilization.

The doomsday natural disaster brought darkness and cold. On the surface, everything is OK now. It seems that soon people will be able to leave the shelter and start post disaster reconstruction.

But in fact, the real test of meteorite impact has not yet come.

Anyone who has studied biology in junior high school knows that everything grows by the sun. Without the sun, most of life on the earth cannot survive.

Now, the dust raised by the meteorite has covered the sky and lost the sunshine. It is not only the decrease of temperature, but also the complete end of the ecology that can be gradually restored.

The previous global fire has burned more than 90% of the earth's vegetation, and a lot of carbon dioxide has been emitted into the air, which has maintained the temperature drop in a short time, but without sunlight, the temperature will soon cool down.

Many people may not have any idea about this, but just think about the four seasons on the earth. Just because the change of the direct sunlight point can make the temperature fluctuate by tens of degrees, we can understand what the loss of sunlight means to the earth.

And there is a more critical problem, that is, without light, photosynthesis can not be carried out, without photosynthesis, carbon dioxide in the air will not be converted into oxygen.

Oxygen is the key to life. The bigger the body, the more serious the life depends on oxygen. Only some anaerobic bacteria can survive without oxygen on earth. Other organisms, whether plants or animals, need oxygen to maintain life.

A big fire burns not only the forest vegetation that can convert carbon dioxide into oxygen, but also consumes a considerable part of oxygen and emits a large amount of carbon dioxide.

Although marine ecology still exists, seaweed and other marine plants can still convert some carbon dioxide, without sunlight, even seaweed can't carry out photosynthesis, and soon the ocean will fall into the crisis of hypoxia first.

Without oxygen, the fish in the ocean will die and the marine ecology will collapse.As for the land, the previous global fire has wiped out a large part of the land life, and burned most of the plants, and the land ecology has collapsed at that time.

After the double collapse of marine and terrestrial ecosystems, the oxygen cycle in the atmosphere will not exist, and the oxygen content in the atmosphere will be further reduced.

Under normal circumstances, the oxygen content in the atmosphere is 20.9%, and the oxygen content is less than 18%, the human body will begin to appear hypoxia reaction.

It's just like altitude sickness. At the beginning, the breathing may be slightly faster, the heart rate and blood pressure will rise, and people who are stronger may not even feel tired.

But with the further reduction of oxygen content, it will be followed by a significant sense of fatigue, attention began to decline, thinking confusion, or even loss of consciousness, into a coma.

If the oxygen content continues to decrease, the body will have headache, tinnitus, dizziness, nausea, vomiting and other symptoms, and even lead to death.

Originally, there were a large number of plants on the earth for photosynthesis, and the oxygen content in the atmosphere was maintained at a relatively stable level.

But now that the ecosystem has collapsed, it is impossible for the ecosystem to recover the oxygen content in the atmosphere by self-regulation before the sun shines on the earth again.

Fortunately, before the disaster, mankind has three months to prepare. Although the main energy of governments during that time is on how to prevent meteorites from falling, it does not mean that countries do not have a plan to deal with the disaster.

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