Researchers from the UK have calculated that by 2025 the maximum amount of carbon dioxide will be in the Earth’s atmosphere. This will increase the temperature and melt the glaciers.
By 2025, the level of carbon dioxide (CO2) in the atmosphere will be higher than during the warmest period over the past 3.3 million years. This became known thanks to a new study by the University of Southampton (UK), published in the journal Nature Scientific Reports.
The group studied the chemical composition of tiny fossils collected from the deep-sea ocean sediments of the Caribbean. They used their composition to reconstruct the concentration of carbon dioxide in the Earth’s atmosphere in the Pliocene era, about 3 million years ago, when the temperature on the planet was 3 ° C higher than now. At the same time, the polar ice caps were larger, and the level of the World Ocean was higher.
The researchers found that in the warmest period of the Pliocene, from 380 to 420 parts of carbon dioxide per million could be detected in the atmosphere. This is similar to today’s figure of 415 ppm, which shows that we are already at a level that in the past caused significant melting and sea-level rise. According to scientists, by 2025, humanity will exceed the figure that was a record last 3.3 million years.
Scientists have previously tried to understand why the Earth has not yet reached the temperature of the Pliocene level. However, now their conclusions are that this requires another 5 years. Researchers note that the climate still needs some time to increase the level of carbon dioxide, which will lead to a chain of events associated with an increase in temperature.