Extra: The highlight of humanity
As stated in The Three-Body Problem, plants, animals and bacteria all play an important role in the composition of the atmosphere.
Without life, the current atmosphere may not be able to block ultraviolet rays and solar winds, the oceans will evaporate, and the Earth's atmosphere will first become a steamer like Venus, and water vapor will evaporate from the top of the atmosphere into space, and the Earth will dry up in billions of years.
The present earth is a home built by life for itself, and has nothing to do with God.
In view of the public discharge of nuclear sewage on today's small day, I may be a little worried.
After all, the ocean is the largest ecosystem on Earth.
Billions of years of life on Earth, all climate anomalies, all mass extinctions, all started with the ocean.
3.5 billion years ago, the entire world's atmosphere was composed of nitrogen, carbon dioxide, and methane.
A group of algae mutates to convert carbon dioxide into oxygen, directly leading to the Earth's reshaping.
Kills almost all anaerobic organisms in the world, transforming the Earth into an oxidized version.
Although this gave rise to the complex world of oxidized organisms, it was a complete disaster for the entire anaerobic ecosystem at that time.
And this is a sea change, except that some algae have mutated a little and cyanophyns have appeared.
440 million years ago, there was a mass extinction at the end of the Ordovician period.
85% of species are extinct, mainly some early fish and molluscs.
The main cause is a gamma-ray burst that hits the Earth and destroys a third of the Earth's ozone layer, causing ultraviolet light to shine directly on the Earth.
The death of most marine life, combined with the destruction of ozone, and the alteration of the composition of the atmosphere, created large amounts of toxic nitrogen dioxide.
Poison doesn't matter, but it's a strong greenhouse gas that has sent the world into a massive ice freeze that freezes a large number of organisms to death.
The Devonian mass extinction 365 million years ago.
With 78% of marine species extinct and the culprit can be identified as magma.
Large amounts of magma erupted from Siberia, causing the temperature and acidity of the sea to rise dramatically, and pollutants to gradually disperse into the atmosphere.
Most of them are greenhouse gases, and plants also decay at an accelerated rate, forming the earth's first soils.
The soil has been washed into the sea, making it the largest breeding ground for seaweed, and the oxygen content of the ocean has been greatly reduced.
This series of disasters is the extreme climate of hot and cold and millions of years of long nights, coupled with a large number of toxic gases and oxygen-deficient seawater, all factors superimposed, the earth is plunged into a long night.
The main culprit is magma, but it is algae that really make the extinction so intense.
The Permian mass extinction 250 million years ago.
This is the worst species extinction in Earth's history known to date, resulting in the disappearance of 95% of species. It can be said that it is a complete renewal of the earth's species.
The cause is unknown, but the prevailing theory is that large-scale volcanic eruptions and tectonic plate movements are causing climate change.
The only thing that can cause extreme climate change is the marine biota.
The Triassic extinction 200 million years ago, the rise of the dinosaurs.
The cause is still magma, and the perpetrator is still algae, which causes the climate to be abnormal.
Whoever makes the largest biota in the ocean are algae, they are also the bottom producers.
The change in the environment in which the algae live is like the GM throwing a test dice to the Earth's biosphere.
Whether it is flooding or decreasing, it will affect the climate and water quality.
If you throw a 'big failure', then the earth will be directly revised.
Finally, the most familiar 65 million-year-old dinosaur mass extinction.
There are many theories about the causes, asteroid impacts, climate change.
But whatever it was, the oxygen level plummeted to 20% of what it is now.
Mammals and flowering plants rose up in such times, but that's all, and if the oxygen level rises or falls, it will be a catastrophe that human technology cannot solve.
It's not much better than the weakness of the dinosaurs.
Tens of thousands of years ago, with the footsteps of primitive humans migrating across the globe, there was another extinction.
This time it was silent, there were no spectacular scenes such as magma eruptions and gamma rays, but the degree of extinction was complete and the time was short, I am afraid that it was incomparable to the previous five.
Because living beings are the biggest engineers who will change the earth.
Creatures are the murderers who kill the most creatures.
Humans use fire and tools and create many things that are rare in nature. Especially after the Industrial Revolution, the damage to biological habitats was enormous.
I don't care if the seafood is edible, I don't like it anyway.
Under the water cycle, the pollution of fresh water is worth paying attention to, but objectively, human technology can still purify water.
However, changes in the composition of the atmosphere and abnormal changes in the climate will be powerless for the development of human technology for another thousand years.
That's real desperation, one can only watch.
And the sun is the most violent climate changer, and the most climate change is algae.
Seventy percent of the world's oxygen is provided by algae.
And the biggest impact on the algae habitat is the ocean current......
I watched a video of the deductive effects of the spread of nuclear-contaminated water with ocean currents.
At the macro level, it doesn't matter which countries it spreads to, it's important that the nuclear contamination is in ocean currents.
Because it must ultimately affect the whole world, the 'country' is not the basic unit of the Earth's ecosphere.
The producers are, like Bessel's welders, who are at the bottom, but whose influence is global and reaches all classes.
Ignoring them would be the greatest arrogance of mankind.
If there is a burst of algae, it is a climate anomaly, and if there is a decrease in algae, it is an ice age.
If the algae gene mutates, then the direct earth updates the expansion.
The earth doesn't matter, humans can't afford to hurt it anyway.
I hope I'm alarmist, but at least what is certain is that the behavior of Xiao Ri will make the survival of all mankind pass a big judgment.
It is a dice of fate that is discharged, and I hope that humanity can roll another 'big success'.
If in my writing, some civilizations do not hesitate to fight, and they will not let civilization suffer such a roll of the dice for no reason.
That's a sign of immaturity.
However, human beings as a whole can't consider problems from a too high perspective, can't put collective interests at the highest level, and can only take into account the practical parts. It may even be possible to learn to follow this precedent because of this precedent......
This may be the difference between a higher civilization and a primitive civilization.
The latter is not a community of destiny, and there is really nothing to do, so you can only watch, and then dare not eat aquatic products.
There is no way, there is only so much that humans can do.
For the sake of human beings, let's suffer algae again.
If I write about a higher civilization that is so immature and writes some unpleasant plots, and civilization does nothing.
Readers have to scold their mothers: Author, are you stupid, writing civilization like an imbecile, there is no logic, how can you deceive yourself like this, no one comes out to stop it.
So in "The Information All-Knower", I changed the plot of choosing a guide.
It can only be said that human beings are a high civilization, so if I write about her too badly, it will make people unhappy.
I'm also a bad pen.
……