Chapter 64： Nuclear winter is coming, and the system is actively upgraded!

Nuclear winter is a hypothetical theory about global climate change, which predicts the possible climate disasters of a large-scale nuclear war.

Some scholars believe that when humans use a large number of nuclear weapons, especially on flammable targets such as cities, a large amount of smoke and soot will enter the earth’s atmosphere, which may lead to very cold weather.

The specific principle is also very simple. When a nuclear explosion occurs, a huge amount of energy will inject a large amount of smoke and dust into the atmosphere, some even as high as 12 kilometers, and then enter the stratosphere.

Since most of the smoke and dust particles produced by nuclear explosions are less than 1 micron in diameter, they can stay at high altitudes for several days or even more than a year, and because their average diameter is smaller than the infrared wavelength, they have a strong effect on visible light radiation from the sun. Absorbing power, and the weak absorption of infrared radiation from the ground, which causes the upper atmosphere to heat up and the surface temperature to drop, which has the opposite effect to the greenhouse effect, making the surface present a landscape like a cold winter, called nuclear winter.

There are also some scientists who believe that the original nuclear winter theory model is wrong. The actual cooling of 14-20 degrees will only last a few hours and return to normal within 3-4 months.

Of course, no matter what kind of statement, there is actually no basis in reality. All are the conclusions calculated by scientists based on the model.

The reason for this hypothesis and speculation, to put it bluntly, is actually to warn nuclear countries that, even for the survival of mankind, they must never regard nuclear weapons as conventional weapons and must not use them casually.

However, this hypothesis is expected to become a reality soon. The federal government has been unable to exterminate the zombies. As the zombies continue to mutate, monsters that are still relatively easy to kill will become more difficult to deal with. So the government decided to use nuclear weapons as a decisive killer to eliminate zombies to the greatest extent. As for whether humans can survive under nuclear weapons attacks... this is no longer within the scope of consideration.

Because even if nuclear weapons are not used, as the zombies continue to mutate, human survival will become more difficult, and even eventually humans will be completely extinct. Therefore, the federal government simply activates nuclear weapons. Contributed to the human race.

"How many nuclear warheads does the Federation have..."

An Kai is numb all over, and he looks at the others with a stiff expression.

Mary and Carter's family shook their heads, but Philip looked solemn.

"I once heard a friend who served as a soldier in the army said that there are currently more than 20,000 nuclear warheads in the Federation."

"Twenty thousand?!"

An Kai almost thought she had a hallucination.

He accidentally saw on the Internet before crossing, that the entire planet, all known nuclear warheads, add up to only more than 20,000.

And in this world, there are more than 20,000 nuclear warheads in the hands of the federal government alone!

"Transfer! Must transfer!"

The city can't stay.

The launch of nuclear weapons will inevitably target cities as the main targets.

This is also understandable, after all, zombies are mainly concentrated in cities, and the wild is the world of beasts.

Although Ankai has strengthened the shelter many times, to the maximum that can be achieved so far, there is a saying that under nuclear weapons, these things are all floating clouds.

Fortunately, after the federal government issued a message, it also stated that the launch time of nuclear weapons would be ten days later. In other words, everyone who heard the news would have ten days to move to the shelter. As for whether there is any place to transfer, that is not the scope of the federal government's consideration.

It’s best for survivors to survive. It doesn’t matter if they don’t. Everyone is ready to destroy the world anyway. Who cares about the lives of several people?

For An Kai, his own life is more important than anything else. He must go to the wild to find a better refuge to escape the first wave of nuclear weapons.

Regarding his orders, no one else said anything, but obediently executed them.

An Kai first made two backpacks for everyone. It is impossible to completely transfer everything, only the important transfer.

The crops planted are to be transferred away, which is the foundation for the future to eat well.

Firearms and bullets are also to be transferred away. There are mutated beasts infected with zombie viruses everywhere in the wild, and they need to protect themselves.

All the facilities are dismantled, the materials can be taken, and the medicines and raw materials must be taken away. Especially these raw materials, many of which are extracted by chemical means, and they cannot be made by a chemical station alone, so they are used. A little less scarce resources, even one gram cannot be wasted.

There are too many things to move, and I can't finish it in a short time.

Philip and Carter's family stayed in the shelter while tidying up while guarding against the invasion of other survivors. An Kai took Mary, drove a jeep full of supplies, and drove out of the city.

It was not only a few of them who heard the broadcast. In fact, a large part of the survivors heard the message sent by the federal government. When Ankai and the others drove out, the entire river bank area was completely messed up.

They were attacked several times along the way. Fortunately, Mary reacted quickly. In short, she shot the enemy to death in a timely manner. Fortunately, ordinary survivors often didn't have any powerful weapons, which allowed An Kai and Mary to leave the city safely.

After leaving the city, An Kai is in trouble. He wants to find a shelter in the wild, but where to find it?

If you build it yourself, you can't create a suitable shelter in just ten days. Nuclear winter is often accompanied by nuclear radiation. General buildings can't stop the invasion of radiation. If you want to ensure your own safety, you still need an underground shelter.

"Why don't you just build an underground palace?"

An Kai thought so.

Just when he was distressed, the system suddenly popped up a prompt.

[After testing, the outside world is about to undergo major changes. In order to ensure the survival of users, the system has begun to upgrade... 1%... 2%...]

This is……

An Kai was taken aback and I was overjoyed!

He never expected that his system could be upgraded automatically.

The various constructions provided by the system before, basically did not have the ability to resist nuclear radiation, so he had such a headache.

Although the use of those system creations can also create an underground space, the cost is too high. It is necessary to dig out the underground palace first, and then re-lay the foundation, walls and ceilings, and during the excavation process, Continue to support the uprights and place the cave in the cave. The construction itself is not difficult, but the difficulty lies in the time. Not to mention how big an underground building is to dig, just dig a hole for all of them to live in, and can put those planting boxes. It also has the ability to prevent radiation, which is extremely difficult.

Especially the last one, if there is no door with good sealing conditions, it is impossible to stop the radiation dust flying in the sky.

But now it’s okay.

Ankai has confidence in the system.

Since the system is upgraded at this time, it goes without saying that it must be for nuclear winter.

When he thought that he would be able to use the power of the system again soon, An Kai couldn't help but relax. The heart that had been hanging in his throat finally fell back into his stomach.

Time passes by one minute and one second, and every five seconds, the progress bar of the system upgrade increases by 1%.

During this process, he did nothing and sat in the cab smoking a daze. Although Mary was full of questions beside her, she didn't ask anything, just holding the gun and guarding quietly.

Finally, when the 500th second passed and the progress bar reached 100%, An Kai couldn’t wait to turn on the system for the first time and began to check the changes after the upgrade.