Scientists said the loss of oxygen in the Earth’s atmosphere
The gas level was reduced by almost 1% in the last hundred thousand years, indicated in a paper presented in the pages of Science. Even before the origin of life on the planet had no oxygen.
After the occurrence of cyanobacterial gas concentration began to increase. Hundreds of millions of years, its concentration remained at the same level. The researchers found the concentration of gas in the last hundred thousand years by examining ice cores that were taken in Antarctica and Greenland.
These chunks of ice were included bubbles, corresponding in composition to the air in quite long periods of time. Scientists said that the ratio of isotopes of nitrogen and oxygen has been reduced by almost 1%. Researchers have presented several theories to explain this situation.
The increase in the rate of erosion could lead to increased oxidative processes. If you don’t consider anthropogenic climate adjustment, the average temperature of the hydrosphere became less.
