What would the world be like if humans disappeared completely?

What would the world be like if humans disappeared completely?

What horrifying reality would happen on earth, if all of humanity suddenly disappeared overnight? That will be revealed in the following impressive video.

Since the birth of the earth, different creatures have appeared one after another, but in a history that spans nearly 550 million years, many species have become extinct.

In fact, more than 90% of all life forms that once appeared on earth have completely disappeared. When one organism goes extinct, another organism evolves and takes its place.

Millions of years ago, the ancestors of mankind were born on the earth and began to compete with other mammals of the same period for the position of "hegemony" of the earth.

After millions of years of evolution and development, humanity relying on skillful hands and unparalleled wisdom has become the new master of the earth and established a glorious human civilization.

But now, humans have disrupted the ecological balance of the earth by themselves, the harsh climate and natural disasters have led to rapid extinction of many species on earth.

Scientists predict, if the situation continues, less than a century from now, the 6th mass extinction will officially begin, humans will then suffer the same fate as the dinosaurs. So, what will the Earth look like after humanity disappears?

Infrastructure collapse

There are endless future scenarios of the extinction of humanity. If a virus causes a global pandemic, causing people to "fly away" from the planet quickly, the city with a large population will be the one that will suffer the most change.

What would the world be like if humans disappeared completely?
A land encroached by trees after falling into disrepair after many years. (Photo: William Widmer/The New York Times).

According to research by researcher Weisman, without people operating traffic, regulating groundwater or city sewers, subway systems like those in London or New York are at risk of being completely submerged in just 36 language.

Oil refineries, nuclear plants, if not regularly monitored, will lead to fires, reactor explosions and the release of extremely dangerous radioactive substances. Similarly, ecosystems that humans have only just learned to appreciate will be dragged along and killed by mountains of non-biodegradable plastic waste.

What would the world be like if humans disappeared completely?
Public transport systems in cities will collapse in just one day. (Photo: iStock).

Nature, trees began to encroach on structures, causing the entire infrastructure to collapse, then replaced by old forests. This causes a huge accumulation of dry leaves and combustible matter. "Fire from lightning will produce a lot of ashes that are the nourishment for living things," said Mr. Weisman. The streets will turn into fields and forests in just 500 years.”

Notably, “The longest-lasting buildings are those constructed from non-artificial materials, such as stone structures. At this time, the massive mounds of earth and rock will become the planet's own symbol, replacing the version of the skyscraper that humans have built."

Natural diversity will recover

Insects, the class of organisms with the largest number on the planet, when no longer controlled by humans, using pesticides will thrive. Accordingly, a chain reaction will occur in the ecosystem: plants multiply and then the number of birds also increases.

What would the world be like if humans disappeared completely?
Scientists predict a human extinction rate of 1/14,000.
Scientists predict a human extinction rate of 1/14,000. (Photo: iStockphoto).

This transformation will lead to an increase in biodiversity on a global scale. Modeling the diversity of large animals - such as lions, elephants, tigers, rhinos and bears - across the planet, scientists reveal that the world was once rich as well. But, that changed when humans began to expand, hunt and colonize their habitat.

“As humans migrated out of Africa and Eurasia to other parts of the world, great proportions,” explains Søren Faurby, lecturer in macroscopic and macroevolution at the University of Gothenburg, Sweden. strains in the animals there are also steadily increasing.”

What would the world be like if humans disappeared completely?
The world used to be very biologically diverse until humans appeared. (Photo: National Geographic).

"Without the heavy human impact, the central United States and parts of South America today would be the richest animal-rich places on Earth," he added. Animals like elephants are common in the Mediterranean Islands. There are even rhinos living in northern Europe.”

Faurby and his colleagues calculated that even if the human race disappeared, it would still take millions of years for the planet to recover from the extinction of many previous species. “It is estimated that it will take 3 to 7 million years or more to return to the pre-extinction point of the species,” said Jens-Christian Svenning, professor of macro and biogeography at Aarhus University, Denmark Circuit said.

The video below shows a sequence of events that would happen, should the apocalypse suddenly strike. The video begins with the question: What if everyone disappeared from this planet?

Nature always finds a way

In a fantasy world, nature can restore its diversity, but the effects of climate change triggered by humanity are indelible. Explosions of oil wells, gas leaks when people are out of control will release a large amount of CO2 into the air.

While CO2 won't stay in the atmosphere forever as it is absorbed by the ocean, this "reservoir" is not bottomless. At a certain point, seawater will be acidified due to excess emissions leading to the species living in the environment being poisoned.

What would the world be like if humans disappeared completely?
Chernobyl, one of the largest abandoned places in the world. (Photo: CNTraveller).

The amount of CO2 in the atmosphere today takes thousands of years to disappear, even 100,000 years according to Mr. Weisman's book. However, he also expressed a point of hope for humanity, which is that the amount of CO2 in the atmosphere in the Jurassic period was 5 times higher, but there are still marine species that cope to survive.

The meaning he mentioned is that no matter how harsh the climate, nature still finds a way to survive, plants and animals can still adapt and then evolve into a more advanced part of the planet.

A fleeting thought of the future in the mind is enough to help someone become more mindful of their actions in the present. Preserving status on the planet has been a constant effort of mankind since the beginning of time.