If human beings suddenly disappear, how long can human civilization on the earth last?

It is well known that biological fossils can be preserved for hundreds of millions of years or even forever. On the other hand, there are many products of human civilization that are more robust and durable than fossils. For example, ceramics, glass, various inert metals, various natural stone and gemstone products, as well as various underground large-volume concrete buildings, will not be damaged in a very short environment.

In addition, there are a lot of them, but the time is unbearable. But if we compare the history of the earth with the history of mankind, we will find that the human civilization that we are proud of is of no value to the earth itself. Because the time of human existence is so short, it is easy to see the gap between the history of 4.6 billion years and 6 million years.

Even the Tyrannosaurus rex, which ruled the earth for more than 100 million years, is still under the influence of the outside world and is still dying. If humanity suddenly disappears for some reason, will the civilizations that emerge in the future be able to find traces of human existence? It is conceivable that after the disappearance of human beings, the whole earth will suddenly be "quiet", major cities will suddenly lose their usual hustle and bustle, and many mechanical equipment will bring a lot of disasters and disasters.

If humanity disappears suddenly, it will definitely bring great disaster, and fires will sweep through many areas, directly or indirectly destroying a large number of human creations. <>

After 20,000 years of human disappearance, almost all the remnants of civilization created by human civilization have disappeared. Maybe only glass. Plastics, etc., have not yet decomposed.

And, of course, man-made radioactive materials. Then, after 50,000 years, glass, plastic, etc., completely disappear and dissolve naturally, and eventually only nuclear waste remains. Nuclear waste is radioactive waste used in the production, processing, and nuclear reactors of nuclear fuel.

Half-lives can be thousands, tens of thousands, or even hundreds of thousands of years. In other words, hundreds of thousands of years later, this nuclear waste can prove that it was used. No matter what we do with our current nuclear waste, landfill or archive, it will not stop future generations from knowing us 300,000 years from now.

If human beings disappear suddenly, I think that human civilization on the earth will only last for about a hundred years. The Earth without human civilization is very scary.

Human civilization on the earth can last for more than 10,000 years, and after more than 10,000 years, all human civilization will completely disappear.

If the human race suddenly dissipated, I think that the human beings on the earth will only be brutal for about a hundred years. No kind of savage earth is terrifying.

I think that the civilization on Earth will also disappear soon, because we humans are advanced animals, and we can create a lot of things.

Before the advent of humans on Earth, dinosaurs had dominated the Earth for hundreds of millions of years. But have you ever imagined that if human civilization disappears from the face of the earth one day, what legacy information will be left for future life?

According to scientists, it will only take 200,000 years for human civilization to disappear after it disappears.

Suppose that human civilization disappears someday in the future, and all man-made facilities will not be able to survive on Earth. The lights of 10,000 homes will cease to exist in the first place. Because there is no power supply, it only takes a day for any artificial light source to go out.

Then there are roads and arable land, which will be wiped out in a matter of months, and country roads will be wild in 20 years, while streets and roads in the metropolis may take a little longer, 50 years. Among human dwellings, wooden buildings decay the fastest, and it only takes 100 years for them to be eaten away by insects.

After 200 years, glass and metal buildings such as the Eiffel Tower will be destroyed, while masonry and concrete buildings such as the Skyscraper Crash Building may remain for a while longer. The pyramids are not immune, and by the end of the next millennium, they will be reduced to dust.

As for the various chemicals, the impact of greenhouse gases such as carbon dioxide on the climate will continue for another 100 years; After 1000 years, the Earth's atmosphere will return to its pre-industrial state. Synthetic chemicals, especially perfluorinated compounds, take up to 200,000 years to decompose, even when buried deep beneath the earth's surface.

Therefore, the archaeological traces that can be used by future generations to prove that human civilization once existed on the earth will cease to exist after 50,000 years. If aliens do come to Earth at this time, they will have nowhere to find traces of human existence. And after 200,000 years, all traces of human existence on Earth will disappear.

How long can human beings exist, if according to the experience of the existence of wolf money, then the previous 5 generations of organisms have existed on the earth for tens of millions of years, and will experience mass extinctions, if we are not due to our own reasons, just the reason for natural changes, at least in the existence of tens of millions of years is not a problem, if it is like dinosaurs,Then we still have about 170 million years to go, because dinosaurs have existed on the earth for nearly 180 million years, and human beings have been around a little more than 6 million years since their ancestors.

Human activities have brought civilization to the earth and changed the earth's environment. We believe that without humanity, the planet would not be what it is today. This brings us to an interesting hypothesis:

What would the Earth look like if humans suddenly disappeared from the earth for some reason and human activity stopped?

Destruction".

After the sudden disappearance of human beings, the emergency fuel for nuclear power plants around the world will run out within a week, and diesel generators will not work, resulting in water outside nuclear reactors that cannot be circulated for cooling. Subsequently, hundreds of nuclear reactors around the world will have a disaster, the diesel engines of the nuclear reactor cooling system will all strike due to the loss of fuel, the nuclear reactors will burn, melt and even ** due to overheating one after another, and hundreds of Chernobyl-style nuclear leakage disasters will occur on the earth at the same time.

City buildings will collapse.

Coastal cities will be the first to "fall". Because the pumps used to pump water no longer operate, the underground world such as subways and underground roads will become water worlds.

Water and weeds erode the entire city from the foundations, and any buildings built of wood will begin to collapse, especially in areas where termites are infested. Many buildings in the city will collapse within 20 years, and almost all homes will be in ruins after 30 years. Within a century, almost all cars will rust and rot.

Glass and steel buildings will collapse within 200 years. The Eiffel Tower, once a Parisian icon, will also be destroyed by severe rust. Of course, all bridges will suffer a similar fate.

After 500 years, the core of the city is covered by forests. Cities with temperate climates will only be covered by dense forests, and the remnants of once-glorious skyscrapers and high cathedrals will remain.

The earth is once again transformed into a paradise for flora and fauna.

When humans disappear, some of the animals that depend on humans for their survival will suffer, such as rats, cockroaches, starlings, cows, sheep and other farm animals. The head lice that inhabit humans will be extinct within a year, and HIV will be eradicated from the face of the earth. The earth will be transformed into a paradise for wildlife.

Tens of thousands of endangered species are gradually returning to their original numbers.

The record of human civilization will disappear.

In 100 years' time, the vast majority of records related to human experience – books, photographs, electronic data – will be gone, leaving little trace of human existence. The exception to this rule is that if they happen to be buried in a layer of sand, they may still survive for thousands of years due to the lack of air and water, and can still be read 10,000 years later.

The enduring legacy of humanity.

In fact, of all the inventions of mankind, plastic bags are perhaps one of the most rejecting human heritage that has been destroyed by the forces of nature. Even after 10,000 years, most plastic bags still won't go away. If aliens come to Earth at this time, they will only find the remains of some bronze statues, stainless steel utensils, and a lot of plastic waste.

Of course, to find these remains, they would have to dig extensively or dive to the bottom of the water.

What this assumption tells us.

The earth turns like this. When will humanity disappear?

1. Become a paradise for Martians.

2. Become a paradise for animals.

3, maybe Nuwa will continue to create people.

4. Become desolate, for there is no tree without people. Trees need water