Doomsday Bunker Upgrade Chapter 68: The temptation of cabbage

The drizzle has been falling, neither getting bigger nor about to stop.

Although the protective clothing has a good thermal insulation effect, Chen Xin still felt a little cool.

"Hu...hu..." Chen Xin's breath was a little rough. Although the protective mask can effectively block harmful components in the air, it also affects breathing.

　　 It was fine before, but now as Chen Xin's breathing quickens after walking for a while, he feels a little breathless.

Chen Xin wanted to find a place to sit down and take a rest and calm down his breath, but seeing the rain and mud everywhere on the ground, he decided to continue walking.

　　 is just a little panting after all. Chen Xin had a similar experience when he traveled to Shu area before, so it's better to walk a little slower.

　　 But this also made Chen Xin wonder if he was really lacking in exercise as Qin Lan said. At that time, he traveled to Shu, but it was because of the high altitude and the altitude sickness caused by the thin air that made him breathe.

Is it true that my physique has deteriorated due to lack of exercise in the past few years as a professional online writer?

　　 Chen Xin had such suspicions. He couldn't help but wonder if he should get a human generator to put it in the shelter. When he was fine, he stepped on the human generator, which can generate energy and exercise.

　　 But just as Chen Xin thought about it, he suddenly stopped and raised his head to look at the sky.

　　 The rain fell on the face shield of the protective mask, leaving ugly stains, but Chen Xin still stared at the sky, watching the thick dust cloud on the gloomy dark sky.

　　 "Damn it! It's hypoxia!" Chen Xin's brain is not stupid, he just subconsciously ignored this question.

Who cares about the oxygen we breathe all the time? I'm afraid it's only when you're really out of breath that you realize you need oxygen, right?

When preparing for the construction of the shelter before the disaster, Chen Xin also subconsciously ignored this problem and only prepared oxygen cylinders in the shelter.

　　 But now when he realized that he was experiencing a lack of oxygen, he realized that when the plants on the ground were burned by the fire and the sky lost the sun, the air that we were most accustomed to had already become The biggest problem we need to face to survive.

　　 People need oxygen to live, and any activity of the human body also needs oxygen to maintain, and the more intense the activity, the more oxygen is consumed.

　　 Without natural plants for photosynthesis, the oxygen in the atmosphere will gradually decrease as the surviving humans consume it.

The process will be irreversible unless the dust clouds in the sky dissipate and the sun shines again on the earth, allowing new plants to germinate for photosynthesis.

Surviving human beings want to survive, they can only find a way to generate new oxygen.

　　Chen Xin himself is not worried about this problem. There is a greenhouse in his refuge. Under the illumination simulated by the fill light, all the crops will still photosynthesize, which is still enough to maintain his Oxygen consumption.

　　 As for the official refuge, Chen Xin thinks that the country should take this issue into consideration. The only uncertainty is whether the country can solve this problem perfectly.

　　 After all, what the country has to consider is all the survivors in the country, not the issue of a certain shelter.

Common oxygen production methods include physical oxygen production and chemical oxygen production. Physical oxygen production is simply to collect oxygen in the air and use it where oxygen is needed; while chemical oxygen production is produced by A chemical reaction that reduces oxygen in carbon dioxide or other raw materials containing oxygen to form new oxygen.

　　 Both methods were widely used for oxygen production before the disaster, but in the current end times, these two methods are not so applicable.

Physical oxygen production requires a lot of electricity, and only extracts the original oxygen in the air. In the current environment where the oxygen content in the atmosphere is gradually decreasing, this method is not applicable.

As for chemical oxygen production, although it does not have the disadvantages of physical oxygen production, it also has the disadvantage that chemical oxygen production needs to consume chemicals, and the cost is high, which is not suitable for large-scale application.

Therefore, if the Yan Kingdom government wants to solve this problem, it can only use methods other than these two methods to solve it.

———————————————————————————

"Finally done!"

　　 The SWAT team, which completed the **** of the oxygen production equipment, returned to the shelter under the police station, and everyone relaxed.

　　 Although most of the SWAT team did not know what the supplies they were escorting, but seeing the armored train at the railway station and the **** formation, they could guess that this was a very important material.

Therefore, when escorting this batch of materials, everyone was actually very nervous.

Now that the task is finally completed, everyone is naturally relieved.

　　 A group of people walked towards the area where the SWAT team was talking and laughing. Although this mission was not tiring, but under high stress ~ IndoMTL.com~ everyone was a little hungry.

Although the food in the shelter is not very good, it is a happy fact that there is something to fill the stomach after the mission.

However, because the food currently eaten in the shelter is mainly emergency food stored before the disaster, although there is a cafeteria, it is actually only used to distribute fixed food, and there is no fire for cooking.

After all, fuel is precious these days, and cooking it is still a bit of a luxury.

　　 As for the mushroom cultivation greenhouses and artificially raised mice and breadworms, although these foods have gradually begun to appear in the recipes of the refuge, they have not yet reached the SWAT team members can only eat The point of these.

　　 "What do you have to eat today?" A special police member hooked a friend by the shoulder and asked him.

　　 "I think it's scallion fried lamb. Yesterday it was shredded pork with Beijing sauce. How can I change the taste today."

　　 his companions responded to his words, sounding as if the food was okay, but in fact they were talking about the taste of self-heating food.

In the two months after the disaster struck, except for mushrooms and rat meat, everyone hadn't seen fresh food for a long time.

　　 another SWAT team member interrupted and said: "I think we should have cabbage soup for whatever it is today. We came back with a box of cabbage yesterday! A whole box of fresh cabbage!"

　　 "It's not! I carried the pillar together, and it would cost two hundred catties!" When a special police member who also carried vegetables yesterday said the cabbage, his eyes were already bright.

Not everyone knew about the news of the fresh vegetables. When they learned about it, many SWAT team members cheered excitedly: "Oh oh oh! I haven't smelled cabbage for two months. !"