Japanese and American scientists concluded that the Earth’s atmosphere will lose all free oxygen in the future.
In order to find out this, the authors of the work modeled the evolution of the Earth’s atmosphere taking into account geological, biological and climatic factors.
As a result, they found out that the Earth’s atmosphere will remain relatively stable for about a billion years, and after that, in a few thousand years, all oxygen will disappear from the planet.
The reason for this is the activity of the Sun: due to the star in the atmosphere, the content of carbon dioxide will decrease. When this indicator reaches a critical point, the process of photosynthesis will be disrupted on the planet, and oxygen will cease to enter the atmosphere.
In a billion years, carbon dioxide levels will be so low that organisms that live by photosynthesis, including plants, cannot produce oxygen.
After their mass extinction, oxygen will be reduced to extreme values - a million times lower than the current ones. At the same time, there will be an increase in methane content – in the atmosphere it will be 10,000 times more than today.
The authors are confident that the biosphere will not be able to adapt to such significant environmental changes.