Qu Jie hid in the Yukun Cave and lived a stable life, but as she expected, the outside world quickly entered a state of collapse of the world's ecological cycle.
To put it simply, it is a mass extinction of species.
Although species extinction has been talked about for a long time and has been happening continuously. Many species become extinct every year, but this time's species extinction is comparable to the last mass extinction.
It was that time more than 60 million years ago.
Thus ended the age of dinosaurs.
Nearly 80% of global species have become completely extinct.
Although so many species have not disappeared yet, the collapse of the entire ecological cycle has just begun.
I believe that as time goes by, the number of species that will eventually become extinct will never be any less than the last time.
The causes and consequences are actually easy to sort out.
In this world, many species have relatively weak adaptability to the environment. Sometimes a temperature difference of one or two degrees may lead to mass extinction of a certain species, or it may also lead to an extremely terrifying gender imbalance in a certain species. Accelerate extinction.
For example, the gender of many reptile species similar to turtles is not determined innately, but is determined by temperature during the incubation process.
Once the temperature is out of balance, it is normal for the next generation to have a large-scale gender imbalance.
Others include changes in ocean currents, changes in ocean water temperature in some areas, undersea volcanic eruptions, accumulation of volcanic dust, increased air pollution, and various natural disasters...
and even changes in seawater oxygen content.
It will have a devastating impact on some species.
Animals are different from humans. When humans are cold, they can put on clothes, hide in houses, turn on electric blankets, burn fire pits, turn on air conditioners, and warm themselves up by the fire.
When it's hot, you can take off your clothes, turn on the air conditioner, turn on the fan, and use ice cubes to lower the temperature and soothe your body and mind.
Even if the temperature changes slightly, for example, the winter is one or two degrees cooler than previous years, and the summer is one or two degrees hotter than previous years, it will not be a big deal. Basically, you can rely on various tools and even technological creations to cope with it.
But not animals.
Not to mention wild animals, even pigs raised in captivity will die from heat if the air conditioner is not turned on or cooled down when the temperature is extremely hot in summer. Who will cool them down in the wild?
Although the original living conditions of wild animals have become worse and worse due to human activities, at least they are not so bad that they are basically extinct. However, as various natural disasters become more and more severe, Human beings can still reluctantly rely on various technological creations to resist natural disasters, or reduce losses and casualties.
But the animals are really helpless.
Not to mention, countries other than Xia that have weather satellites are constantly moving their domestic natural disasters to other places. These situations undoubtedly make climate fluctuations in many places particularly severe.
In particular, uninhabited ocean areas are the hardest hit areas and the hardest hit areas for large-scale species extinction.
Frequent natural disasters, excessive climate change, and ecological destruction lead to species extinction. Species extinction will indirectly make the entire ecology become worse and worse, and even cause a large number of food chains to break. For example, the mass extinction of krill will undoubtedly cause many species in the ocean to become extinct. Animals that relied on krill to survive also starved to death on a large scale.
Those animals further up the food chain continue to become extinct.
Or having to change eating habits.
In this world, many things are linked together. If there is a problem in one link, it will inevitably lead to a chain reaction. As the mass extinction of species spreads wider and wider, more and more species are extinct, including a large number of seaweed plants. Also began to die, global oxygen concentration continued to decrease, while carbon dioxide concentration increased.
And the oxygen concentration starts to decrease.
The rate of species extinction is even faster.
The situation has developed to this point and is no longer controllable by meteorological satellites. Although the meteorological satellites of various countries are still operating, whether it is the decrease in oxygen concentration, the fragmentation of the food chain, or the global summer temperature increase and winter temperature decrease, A terrifying cold wave is coming, and weather satellites are powerless.
Meteorological satellites can disperse clouds in a small area or redirect a small-scale cold wave, but they cannot disperse a cold wave that sweeps across the country or even half of the planet. Therefore, when the climate becomes severe, half of the planet is covered by a terrifying cold wave. When it is swept to such an extent, no matter how many weather satellites there are, there is currently nothing that can be done about it.
You can only use other methods to resist.
But when people are exhausted, the so-called man can conquer nature. At most, he can only overcome some minor disasters. When faced with real horrific natural disasters, he is still powerless.
So the natural next step is to reduce grain production.
Even to the point of no harvest.
and massive human death.
The previous days can at best be regarded as a prelude to the end. Until this moment, the real doomsday has completely arrived. Humanity's years of scientific and technological development and arrogance are no different from ordinary animals under the sweeping power of nature. The difference is just ants.
At this time, some countries started wars.
He knew that he was struggling to his death, but he still wanted to go crazy.
There are also countries that completely abandon civilians, either taking their elites to hide in the doomsday base, or taking their dignitaries on the doomsday aircraft carrier, Noah's Ark, or even taking a rocket directly into the space station to live temporarily.
Xia Guo is actually no exception.
The main difference between them and those countries is that they have built more doomsday underground bases, but even so, the number of people who can live in them is limited. They can only send elites, young people, and children to the underground bases first, and the rest People live on the same ground.
Rely on various latest scientific research results.
Barely able to withstand natural disasters.
At the same time, due to various reasons such as lack of supplies and inconvenient transportation, the major bases are basically in a state of autonomy, and the original order has begun to collapse.
In just a few years.
The total global population has dropped to less than one billion.
And this is not the end. Reality tells all human beings that what follows is not ups and downs, but declines and falls. In the following year, many desperate natural disasters occurred one after another. Many humans were so desperate that they directly committed suicide. Martyrdom, I don’t want to live a hard life anymore.
For example, the world's largest volcanic eruption blocked the sky with volcanic dust, causing the global average temperature to drop by two degrees again, and a large number of plants died due to the loss of sunlight.
For example, when a magnitude 12 earthquake occurred in the peninsula continent, the entire continent collapsed and sank to the bottom of the sea.
Another example is that the magnetic field is turbulent and a large number of satellites lose contact.
Infrastructure in various places has been severely damaged, daily communications have been blocked, and even the Internet is basically unusable.
In short, mankind has entered its darkest moment.
