If there is no oxygen on the earth one day, what impact will it have on human beings?

The earth has existed for 4.6 billion years, so there are often doomsday remarks in recent years, so will the doomsday really come? When will you come? Recently, some scientists have discovered that the earth may enter the so-called "great hypoxia era" in the future, when mankind is likely to face extinction, that is, the end of the world is coming. Because in the history of the earth, there was a big hypoxia event, which eventually led to the extinction of species.

Let's talk about what is an anoxic event first. Hypoxia event refers to severe hypoxia in inland and ocean for a period of time. During this period, the hydrogen sulfide in the ocean will increase greatly, resulting in a large number of biological deaths. The main reason for hypoxia is global warming caused by slowing ocean currents and rising temperatures.

The extinction event from Permian to Triassic in the history of the earth is the "tragedy" of species extinction caused by the great hypoxia of the earth. The extinction event occurred about 2.5 14 billion years ago, which is also the most serious species extinction event known to mankind. In the study of this event, we found evidence of severe hypoxia and a large amount of hydrogen sulfide in the ocean, which provided scientists with a research direction.

Why does the era of great hypoxia lead to the end of the world? According to an article in The Sun, with the decrease of oxygen content, many lives on the earth will die. As we all know, most life on earth can't exist without oxygen, and all living things live normally by breathing oxygen. Oxygen is very important to us. According to the research report of the earth's oxygen, the earth may enter the era of great hypoxia in 65.438+0 billion years, and the earth will remain in a state of high oxygen in 65.438+0 billion years.

As the sun gradually "ages" in operation, it will release more heat, which will lead to the absorption of carbon dioxide and reduce its decomposition. Although carbon dioxide is one of the causes of the greenhouse effect, it plays an indispensable role in the carbon cycle. If the carbon dioxide content is too low, without photosynthesis, a large number of plants will die, and the earth will be deprived of oxygen, which becomes a vicious circle.

Plants must use carbon dioxide and sunlight for photosynthesis to produce oxygen. People on the earth, including animals, need oxygen, so carbon dioxide is essential in nature, so the decomposition of carbon dioxide is one of the reasons for the end of the world.

In addition, another reason why the era of great hypoxia will usher in the end of the world is the emergence of a large number of highly toxic hydrogen sulfide gas. The occurrence of marine hypoxia will be accompanied by a phenomenon that hydrogen sulfide gas will gush out of seawater and rise into the atmosphere. Once hydrogen sulfide enters the atmosphere and "attacks" the ozone layer, the ozone layer will be destroyed, and radiation such as ultraviolet rays will cover the whole earth, leading to the extinction of life on the earth. Moreover, hydrogen sulfide itself is very toxic, and evaporation into the air will poison animals and plants, including humans.

So what caused the "sharp increase" of the oxygen-deficient hydrogen sulfide content in the ocean? Some experts speculate that a series of marine hypoxia events may be related to the eruption of Siberian trap, because its eruption produced a large amount of carbon dioxide, which led to a sharp increase in greenhouse effect, thus reducing the oxygen concentration in seawater, which is now widely recognized.

Although it is speculated that 654.38 billion years later will usher in the era of severe hypoxia, we still have to protect the environment and live in harmony with nature. Today's sharing is over. I hope readers will gain something!