Due to the relatively low temperatures, most of the planet is uninhabitable, with less than half a billion people living on wide plains.
Xu Hang can only conclude from memory that this vast plain was formerly the Eurasian plate.
Snowflakes from the sky have turned much of the planet into marine glaciers, and people have had to pile buildings up and high to avoid being submerged.
As a result, the current buildings are generally 100 meters above, and the highest even reaches a height of 500 meters!
It's not that it can't continue to increase the height, but considering that buildings that are too tall are not suitable for human habitation, and there are problems such as altitude sickness, the minimum standard is limited to 100 meters, and the maximum standard is limited to 500 meters.
Most of the buildings are made of ice, so there is no need to think about melting, because the sun has become a luxury in this era, and the ultraviolet rays that people get are still synthetic.
Crowded into crowded buildings, the productive forces of mankind have developed unprecedentedly, but only in relation to survival and development.
The head of the federal government is not Xu's father and mother, but a person Xu Hang does not know.
Xu Hang's parents' status is equivalent to that of scientific researchers, but they have a high degree of freedom and a manor of their own.
The reason for such a status is entirely determined by its longevity.
After all, it is a miracle that there are still no signs of aging after a lifespan of nearly 200 years.
Whether it is the memory of the owner of the body or other aspects, it is a treasure, and if it is excavated, it may benefit mankind.
Although there is no hope in the current life, the temperature on the earth is getting lower and lower, the energy is getting less and less, and hundreds of people die every day due to cold, but if they can live one more day, everyone will not give up.
Earlier, Xu Hang had sown a large number of gophers on the earth, and after decades of development, gophers not only did not become extinct, but evolved cold resistance.
This super-ferocious creature itself is very difficult to extinction, just like insects in the field, and the ultra-high birth rate brings a great increase in the probability of mutation.
Cold-resistant gophers run on glaciers and nibble on everything they can.
After they really didn't have anything to eat, they set their sights on the Earth Federation.
The result was a war of attrition, with people eating gophers, and gophers eating humans.
In this way, both sides solved the problem of food sources and eliminated the old, weak, sick and disabled from the race.
It's just that the people in the lower classes can't see this and hate gophers.
Taking advantage of the gap between Ketugeya's memory transmission, Xu Hang saw a young girl again, Xu Ya - Xu Hang's sister.
Because of the increase in life expectancy, although Xu Ya has lived for more than a hundred years now, compared to the activity of body cells, she is still like a girl, and she has not changed much.
Even the mental age is the same, actually catching gophers with a group of teenage children on the outer wall of the city-state.
"Sure enough, it's a girl who doesn't grow up, since you see it, you can come over to me."
Xu Hang showed a devilish smile. …… The façade of the city-state.
"Caught, caught!"
Xu Ya casually dropped a fishing net and instantly covered the gopher, which was faster than a rabbit, and this feat won the shouts of her companions.
"Aunt Xu Ya is so amazing!"
"I'm going to call my sister."
Xu Ya alone gave them a burst chestnut.
"I know Sister Xu Ya."
"That's good."
Then Xu Ya jumped over, and in the exclamation of the children, jumped down from the hundred-meter-high city wall, resisted five gophers about the size of piglets, and jumped more than ten meters high on her hind legs.
Halfway through, she threw out a rope, and the ring on the rope was perfectly attached to a bulge on the city wall, and with the help of the pull on the rope, Xu Ya fell to the city wall in three or two clicks.
Judging by the adoring but not much surprise on the children's faces, she had done this kind of thing many times.
"Hey, what kind of expression do you have, aren't you just catching a few gophers, why do you have such big mouths?"
Xu Ya threw off the gopher on her back, but pounced.
Following the direction pointed by the children, Xu Ya turned her head to look behind her.
I saw a sturdy figure standing behind her, holding a bag of gopher in his hand, and the corners of his mouth couldn't help grinning, as if to forcibly hold back a smile.
No, I can't help it.
"Puff ha......"
Xu Hang's dumbbell-like laughter came out.
This laughter was like some kind of signal, causing the gophers within a radius of a hundred miles to retreat back and shrink back into their holes**.
"Give it to me!"
After finally seeing the person clearly, Xu Ya not only did not fear, but crossed her waist and became more confident.
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"No."
Xu Hang lifted the gopher high, and Xu Ya, who was one meter six, couldn't reach it at all.
Gradually, mist appeared in Xu Ya's eyes, and there was a faint sound of sobbing.
"Aunt Xu Ya is crying?"
A few little kids chattered.
This is heavy news, Xu Ya Demon King, who has always been not afraid of heaven and earth, was actually crying by anger?
In an instant, the children ran away, and they wanted to tell others the news.
"I'll do it for you."
Xu Hang felt a little guilty, after all, he hadn't seen him for decades, and he cried his sister as soon as they met, which seemed a little unreasonable. got the gopher, Xu Ya smiled proudly, "Hahaha, Xu Hang, you give me death!"
” Several gophers were thrown out by Xu Ya with all his strength, gradually expanding in Xu Hang's pupils.
The terrifying appearance of the gopher was reflected in the pupils, and in their opinion, flying towards Xu Hang was not as happy as dying at the hands of the Great Demon King Xu Ya.
The next moment, the gophers turned into water vapor and disappeared into the air.
Xu Hang's figure was revealed, "Ahem, I didn't control the temperature well, and I accidentally baked them into steam." ” Seeing Xu Ya's stunned appearance, Xu Hang waved his hand in front of her, "What's wrong?"
” After a few seconds, Xu Ya relieved herself and exclaimed in surprise: "Fire!
You've mastered fire!
” "What's wrong?"
Xu Hang still looked puzzled.
Without waiting for Xu Ya to explain, a group of people came from all directions of the city wall, these people were very different from the poor people of the city-state, first of all, their size, in this era of extreme food scarcity, they still maintained the fine traditions of the last century - no matter how much they eat, they could not lose weight!
Of course, there are still thin ones.
Another common denominator is that these people are wearing antifreeze suits, which is a great invention of the era, and it only takes one gopher to maintain a normal body temperature for a week!
"Who bullied our sister Xu Ya, see if I don't hack him to death!"
Hearing this, Xu Hang's face darkened, and he pointed at those people and asked, "Who is this?"
” "Oops, it's my privacy, don't ask."
Xu Ya squirmed rarely.
Xu Hang squinted at Xu Ya: "It's your licking dog, right?"
”