Video spoilers history, starting with the blitzkrieg on Poland

The marquee continues to play.

[The Great Oxidation Event then fermented further.]

[Successfully eliminated almost all deep-sea microbial communities.]

[And those photosynthetic microbial communities continued to thrive, growing in number and releasing more and more oxygen.]

[Until the ocean can no longer hold any more oxygen.]

[Then the extra oxygen began to enter the atmosphere.]

[With its super strong oxidation ability, it tears apart the methane molecules in the air and converts them into carbon dioxide. ]

Qin Dynasty.

When Ying Zheng saw the word carbon dioxide,
I can only say that it is very familiar.

"If I remember correctly."

"Carbon dioxide also played a role in the end-Permian extinction that Tianmu talked about before."

"It seems that carbon dioxide is causing the Earth's temperature to rise."

"The Earth is too hot, and it's not suitable for survival, right?"

The clerk at the side quickly flipped through the previous records.

It was handed over to Ying Zheng through Prime Minister Li Si.

Ying Zheng looked at the records and was very satisfied, thinking that his memory was quite good.

Basically, the ancients believed that.

Next, the greenhouse gas carbon dioxide caused further mass extinction.

And the sky is also telling the story.

[We know that carbon dioxide is a greenhouse gas, and large amounts of carbon dioxide can cause global warming.]

[But methane is a heavyweight! ]

[Methane's insulation effect is more than 20 times that of carbon dioxide, making it the real ace greenhouse gas! 】

As oxygen rips methane into carbon dioxide, the fuzzy blanket of methane that once enveloped the Earth is stripped away.

【Global temperatures began to drop rapidly. 】

[Green photosynthetic bacteria further devour carbon dioxide in the atmosphere, which also leads to further depletion of the Earth's insulation layer.]

【Then the Earth fell into a terrifying global ice age. 】

[More than 20 billion years ago, the temperature of the sun was lower than it is now, and the heat was not as high as it is now. ]

[Add to that the loss of the insulation layer, and the situation on Earth is getting even worse. ]

【Lakes, rivers and oceans around the world began to freeze over.】

[In areas close to the equator, huge ice shelves spread out like vines.]

【The Earth has completely become an ice and snow planet. 】

【The average temperature dropped to minus 50 degrees Celsius.】

[From the equator to the poles, there is a layer of solid ice covering the Earth, with an average thickness of up to 100 meters.]

[The ice layer in the equatorial region is as thick as 1600 meters! ]

[From space, the Earth at this time looks almost the same as many icy planets we have discovered today.]

[There is absolutely no sign of life.]

[Only a few organisms near the seafloor hot volcano vents can survive this snowy Earth event. ]

【The long ice age lasted more than 3 million years. 】

[The photosynthetic bacteria that caused this snowy Earth event almost wiped out all life on the planet.]

[And the shallow sea where he lived was also frozen. ]

[Ancient bacteria were buried in the beautiful scenery of the icy earth. ]

[In order to avoid freezing, some colonies dived into deeper waters and survived under the thick, opaque ice.]

[Although the ocean deep below the ice and snow crust is not frozen. ]

[But it is permanent darkness here, without a single ray of sunlight.] [For those bacteria that rely on sunlight for photosynthesis, the deep sea is completely unsuitable for survival.]

[Transferring here is equivalent to issuing a death sentence. ]

[After the Great Oxidation Event between 24 billion and 20 billion years ago.]

【99% of species on Earth have disappeared.】

【The rich archaea that once spread throughout the ocean were wiped out forever.】

[Less than 1% of the creatures survived the long Snow Earth period in the deep sea by relying on the heat of the seabed.]

[Although from the perspective of the time, photosynthetic bacteria almost led to the reopening of life on Earth. ]

[But it is also photosynthesis that forms the foundation of modern ecosystems.]

[After nearly destroying all life on Earth, the Earth as a whole showed an increased oxygen content. ]

[In this way, the foundation for the emergence of higher life forms began to be laid on Earth.]

[After the horrific ice age, various more complex and advanced life forms emerged like mushrooms after rain. ]

[And oxygen also forms the ozone layer, which blocks a lot of cosmic radiation. ]

【Provides a more gentle environment for the entire earth. 】

[Life on Earth no longer has to hide in the sea, but can leave the ocean and step onto land, and will not be killed by cosmic radiation. ]

[From then on, a blue earth full of vitality gradually appeared. ]

The sky curtain ended here, and the barrage of bullets flew out one after another.

《No destruction, no construction! 》

So are we all descendants of deep-sea bacteria?

"Yes, those that survive are the descendants of deep-sea bacteria, and the rest have turned into oil."

"Archaea are not extinct. There are still purple bacteria that use sulfide for photosynthesis. These are archaea."

So, Antarctica may still have ancient microbial specimens?

"In fact, the atmospheric oxygen content is in the single digit most of the time, and it has only been stable at around 20% for about million years."

"The pain of the evolution of life on Earth is inevitable."

"The Great Oxidation Event actually had benefits. It preserved the Earth's surface water."

……

And in the Ming Dynasty.

Xu Guangqi watched the entire sky curtain very carefully.

Learn about the most powerful and craziest extinction event in history.

Even though he had been looking at the sky curtain for such a long time, Xu Guangqi was still deeply shocked.

“I watched the video about the universe before and realized how big it is.”

“I just feel the greatness and despair of the universe.”

“Instead, we neglected the Earth.”

"After watching these popular science videos about mass extinction, I also learned about it."

"Even the Earth, which seems insignificant compared to the universe, is incomparably terrifying and crazy in its violence."

"What if a mass extinction like this, global cooling, happened in Ming Dynasty?"

"Oh no, even if it happens in the future, I'm afraid all humans will be extinct, right?"

“I wonder what the survivalists of the future would do if they encountered a global disaster like the Great Oxidation Event.”

"Is there any chance of survival?"

"By the way, don't we have movies and television in the future?"

"If I were in the afterlife and had money, I would invest in an apocalyptic movie about the world after the Great Oxidation."

“Maybe it will be welcomed.”

Xu Guangqi, who had learned something, was in a good mood and started to joke. (End of this chapter)