In the 34th year of the era of crisis, Evian tried for the first time to obtain a doctorate in computer science recognized by the World Academy of Sciences.

The test will be conducted in a closed room with a camera, and candidates will be required to wear V gear and enter the VR classroom.

In the master bedroom opposite, Song Xiang accompanied his daughter to play chess.

Looking at Yun Yun, who was not as cheerful as before, my father had mixed feelings in his heart, and he was very uncomfortable.

The prison-like environment is too torturous, no, in terms of living environment, it is not even as good as the prison of the Golden Age, when at least you can see the blue sky, and you don't need to wear a gas mask when you go out.

When environmental problems become more and more serious, people lose the ability to look up at the stars, and they can't see anything when they look up.

When the data blue star is turned off, the new generation loses the way to miss the past, and they can only learn about the happy and beautiful golden age of mankind decades ago through the oral accounts of their parents.

As soon as he finished playing a game of chess, Song Xiang heard a hurried knock on the door, "Shuguang, are you a resident of this community?" ”

Dawn: "Yes. ”

If you are a member of the community, you can open the door directly.

The door opened, and Li Fu said anxiously, "Xiangzi, are there any potatoes?" I'll exchange cabbage and tomatoes with you, you can exchange as much as you want, urgently! Saver it! Help me! ”

As he spoke, he pointed to a box of vegetables beside him.

Song Xiang made a silent gesture and whispered, "I have potatoes, how much do I change?" Can you tell me why? ”

"The weight is 1:1.2 change, you have no problem after changing."

"There is no glucose in the hospital, and my wife can't eat after the operation, so she can only rely on glucose injections to sustain her life."

Potato, also known as potato, is one of the important raw materials for the industrial production of glucose.

Not only is glucose lacking, but the blood bank is also depleted.

Hearing Li Fu's words, Song Xiang realized that the food problem was even more serious, and he immediately invited his neighbors into the house.

"Are these potatoes sent directly to the factory for processing?"

Li Fu nodded: "Yes, 30% of the finished product is charged for processing fees and transportation fees, fortunately, there is dawn to watch, otherwise I dare to guarantee that I will not even get 20% of the finished product." ”

After Dawn was connected to the military and political system, corruption was almost gone.

Song Xiang brought a box, took out the potatoes and weighed them, and handed them to Li Fu in exchange for more vegetables.

"Thank you, thank you..."

After getting the potatoes, Li Fu bowed and thanked him again and again.

"Shoko, don't get sick! There is no medicine in the hospital, and in the hospital, I see people dying every day..."

"Hospitals don't need money to treat patients now, but the medicines that are in short supply are distributed to young people, children, and people with high educational qualifications.

"The elderly, the useless to society, have been abandoned."

……

Sending Li Fu away, Song Xiang fell into deep thought.

On the roof of the building, a cargo drone is parked here, and a panting Li Fu stuffs two kilograms of potatoes into the warehouse, and after the people are far away, the drone takes off and goes to the pharmaceutical processing factory outside the city.

After that, he rushed to the hospital.

Yun Yun ran out of the room, looked at the red fruit, and said expectantly: "Dad, I want to eat scrambled eggs with tomatoes at noon!" ”

Song Xiang came back to his senses from his thoughts, rubbed his daughter's head, and said, "No problem." ”

Three hours later, Evian came out of the exam room, and as you could tell from the frustrated look on his face, he had failed.

Song Xiang brought lunch to his wife and said, "It's okay, we still have time, and I will study with you in the future." ”

Evian nodded: "Let's work together, we have to escape as soon as possible, I have a bad premonition." ”

"yes, it's too late if you don't run."

After the birth of his daughter, Song Xiang gave up Kaobo, because the small oasis built by his family and community gave him the hope of living a self-sufficient life, but this insignificant hope was just ripped away by Li Fu with ruthless reality.

"If you don't run, it's too late? What do you mean? ”

Evian couldn't even bother to eat, and asked in horror.

Faced with his wife's doubts, Song Xiang told Li Fu's family about it, and then said:

"Even if the small oasis in the city exports food to the outside world while ensuring self-sufficiency, the overall food production and consumption of our country are in a state of making ends meet."

"The food supply has also fallen into a vicious circle, no, it has long been in a vicious circle."

From the moment of environmental destruction, it is the consequences that have just been revealed after 30 years of fateful development.

……

The next day, Song Xiang took Yunyun to the Yangtze River to play as promised.

The sky was cloudy, but the air was extremely hot, and the water vapor was very heavy and stuffy by the river.

The breeze blew some sand and dust from time to time, and Song Xiang instructed: "Yunyun, don't take off your gas mask." ”

Yun Yun nodded, leaned on the railing and looked at the river, and asked obediently, "Dad, did you say there are fish in the river?" ”

"I don't know, but it shouldn't be, the chemical pollution is so bad that the fish are poisoned."

Looking at the turbid river, Song Xiang found that the water level seemed to be much lower than in his memory, so he took out his mobile phone and checked.

"Is there a drought upstream?"

He didn't know that he couldn't find any news on the Internet.

With glaciers melting, sea levels rising by one metre and global average temperatures rising to 18 degrees, it stands to reason that there should be flooding.

Song Xiang thought about the last time it rained, it seemed like a month ago, right? It fell so hard that the community's underground farms were almost flooded, and I heard that there was a mudslide in Shuzhou.

"By the way, the land in the northwest, southwest and central China is extremely desertified, there is no vegetation to prevent soil erosion, and no matter how much precipitation there is, the land cannot hold water, just like the desert!"

"Damn! No wonder there is less and less food, and the small oasis in the city also needs to consume water! ”

"With a water purification plant, we are not afraid of water pollution, but if there is no water, the water purification plant will not be able to make water!"

Thinking about it, Song Xiang looked back at the high-rise buildings behind him, as if he was looking at a man-eating devil.

If water is not available, the fragile ecosystems of the small oases can collapse completely within a few weeks.

And then what? What will happen! Men don't dare to think about it.

This city has a population of 20 million.

In the following days, Song Xiang would come to the Yangtze River Bridge once a day to take a look at the city's lifeline.

The water is getting less and less day by day, and one day, the Yangtze River suddenly ran out of water, and Song Xiang judged according to yesterday's runoff that it should be the upstream city that intercepted the river, or the mudslide blocked the river.

Hopefully the latter.

The man's scalp was numb and he ran home, called Evian to store water with the prepared utensils, and then broke the news to the community.

In the midst of worry, the city ushered in judgment.

"This is an unprecedented drought, but human civilization is no longer the child it once was."

"Excavate rivers to divert seawater to irrigate the inland, and do a good job in the expansion and upgrading of water purification plants in various places to ensure that the seawater desalination project can supply domestic water for the whole people."

"Please don't panic, freight trains transport a total of 10 million tons of seawater every day to cities that lack water."

The daily water consumption of 1.3 billion people is only to meet the demand for drinking water to quench their thirst, and more than 2 million tons of fresh water, not to mention the water consumption and industrial water consumption of small oases.

"Our city has one billion cubic meters of groundwater, and before the river reaches our city, our city will rely on groundwater to tide over the difficulties."

In other words, freight trains laden with seawater pass through this important transportation center without leaving a drop of water.

"From today, families will turn on smart water and limit the amount of water."