The next day, a meeting attended by more than 300 people was held inside the base. The participants included scientific elites and representatives of technical workers.

Yu Yifeng sat at the front of the meeting, gently stroking the hair at his temples. Last night, he stayed up all night. After dispersing the fanatical crowd, he spent almost the whole night getting to know the overall operation of the base. The situation was a mixed bag, slightly better than expected, but still far from optimistic.

The original ruling team of the base had been completely wiped out. Helplessly, he had to form a temporary government organization in a hurry.

First of all, unexpectedly, Calvin and others expressed their willingness to submit to him. They were imprisoned for the crime of rebellion and did not resist at all during the process. Perhaps Calvin himself had been deeply trapped in self - brainwashing, but this was still a good thing after all.

The second piece of good news was that after Calvin's incident, more than 20,000 people firmly believed that Yu Yifeng was the legendary savior who could save them. In addition, more than 5,000 out of the remaining 30,000 people were attacked by rioters and were rescued by Yu Yifeng and his team. These people also became his loyal supporters.

Most of the others were hiding in underground facilities. Although they were not at the scene, they had watched some videos and heard rumors, and were currently in a state of being skeptical...

Overall, the popular sentiment was generally stable. However, thinking of this, Yu Yifeng couldn't help but feel a headache. In fact, he didn't have much ambition. Who would want to be the leader of the Lunar Base in such a situation? It was completely forced by the circumstances...

As for the secrets of the Perfect Element and the alien spaceship, they seemed to have been completely exposed. However, except for a small number of people who reacted, the rest of the people seemed to be numb and did not show much emotional fluctuation. After all, at the critical moment of the survival of the entire race, who would have the mind to consider things like lifespan?

If death were to come tomorrow, what would be the point of having a lifespan of 100 million years?

The really thorny problem was... this was indeed an extremely serious issue!

Thinking of this, Yu Yifeng did not hesitate any longer and said in a low and firm voice, "Everyone! I called you here for no other reason than a matter of life and death for humanity!"

"At present, all positions in the Lunar Base are in a state of passive absenteeism. On the one hand, the original ruling senior management was attacked, leaving the base without management. On the other hand, people's psychological factors have also had a great impact."

"The Earth has been destroyed, and each of us is filled with sadness and despair. We need time to rest, need comfort from others, and have countless emotions that need to be vented..."

"I know that asking you to work at this moment really goes against human nature. But everyone here is an elite, and you must understand a fact - we can no longer obtain supplies from the Earth, and the Lunar Base itself simply cannot produce enough living materials to meet the needs of 50,000 people!"

"We lack water, oxygen, food... almost everything!" Yu Yifeng's voice gradually rose. "Time is running out. If we survivors just sit around and wait for death, we will surely miss the chance to survive..."

At this time, Dr. Roman, who was sitting directly opposite him, spoke. Dr. Roman was the chief biologist of the base and someone Yu Yifeng was quite familiar with. "Captain Yu Yifeng, if you have any ideas, just say it directly. Although we have lived here for a long time, we are all focused on our own work and don't know the overall situation of the base."

As soon as he finished speaking, some people around him nodded in agreement.

"Okay, then I'll get straight to the point." Yu Yifeng said, "First of all, it's the food problem!"

"Assume that each person needs to consume one - jin of food per day. With a population of 50,000 in the base, the daily food consumption is about 25 tons. However, the high - energy compressed food we are currently consuming, which is rich in sugar and fat, can reduce this amount by two - thirds. That is, we need to consume about eight or nine tons of food per day."

The people around nodded, acknowledging the accuracy of this calculation.

"Before the Earth was destroyed, the 'Victory' spaceship happened to transport 400 tons of food. Adding the original reserves of the base, the total is about a little over 700 tons. In other words, these foods can only last for more than ninety days. Even if we save, it's at most 100 days!"

"100 days, only 100 days! After 100 days, we will face a food crisis! Without food, the final consequence doesn't need me to explain, right?"

100 days, just a little over three months. Everyone fell silent. This time was really too short! A sense of urgency that was as pressing as a fire burning one's eyebrows instantly welled up in their hearts.

Everyone present was an elite, with intelligent minds and broad knowledge. If things continued like this... they seemed to have already foreseen the tragic scene of themselves starving to death. When people are extremely hungry, they can do anything. Horrible things like cannibalism and swapping children to eat might really turn this place into a living hell.

"So, we must take action immediately!" Yu Yifeng punched the steel table heavily. "As long as we still have time, there is still hope!"

Is there a food production base on the Moon? Yes, there is. However, compared with the demand, its output is really negligible.

The food base on the Moon mainly produces agricultural products such as vegetables and fruits. Because the high - energy food has a poor taste and long - term consumption may affect health, people need vegetables and fruits to improve their diet and supplement essential dietary fiber.

Even so, the prices of these vegetables and fruits are astonishingly high, at least a hundred times higher than on Earth.

As for other grains, large - scale production has not been carried out. This is not only restricted by technical factors, but also because the production cost is too high. It is more cost - effective to transport them from the Earth.

"Captain Yu Yifeng, perhaps we can plant rice on a large scale!" The speaker was a middle - aged man in his thirties. He was the person in charge of the agricultural base and the one who knew the most about this.

"If cost is not a concern, we can cultivate rice on a large scale! The growth cycle of some rice varieties is about three months. If properly cultivated, we can definitely produce the first batch of grain before the food crisis arrives!"

Hearing this, everyone's spirits were lifted. Hydroponics is a relatively mature technology on the Moon. The yield per mu of hydroponic rice can reach more than 1,000 jin. The key is that this cultivation method is very space - saving. The cultivation dishes can be stacked layer by layer. If one mu of land can be stacked ten layers upwards, the yield per mu can reach 10,000 jin!

Calculated in this way, only 500 mu, that is, about 330,000 square meters of land, can feed 50,000 people.

But before he finished speaking, a voice mercilessly shattered this beautiful fantasy. It was Dr. Roman, the chief biologist. He said unceremoniously, "Mr. Cherf, you're thinking too simply! Our food base doesn't have such a large scale. Although expanding the scale is feasible, a series of subsequent supplies must be ensured. We need relevant facilities, including cultivation dishes, culture solutions, inorganic salts, floor lamps, air - conditioners, etc... And all these need time to prepare."

"More crucially - carbon dioxide! This is not the Earth. We are seriously short of carbon dioxide! Have you ever thought about how plants can grow through photosynthesis without carbon dioxide?"

"As we all know, most of the oxygen we breathe is produced industrially, and only a small part comes from photosynthesis. As for the carbon dioxide produced by our breathing over the years, due to lack of attention, most of it has been lost... with air leakage!"

"The plan to expand the food base was shelved because of this problem."

The middle - aged man turned livid and sat down after hearing this. He also deeply realized the seriousness of the carbon - dioxide problem.

"To solve this problem, we must establish a new ecosystem, a complete biosphere! This is no longer just a simple issue of food cultivation, but a comprehensive and systematic problem!" Dr. Roman emphasized loudly.