Accelerated climate disaster

UNITED STATES, WASHINGTON (OBSERVATORY) — Scientists from the universities of Michigan and Arizona have reached a conclusion that the acceleration of global warming in the future will increase.

According to Science Daily, scientists from the two universities were able for the first time to design a model for the abnormal warming that occurred at the beginning of the Eocene era (about 56 million years ago), which is expected to be repeated in the future.

The researchers discovered with the help of the climate model CESM1.2. The rate of warming increases with the concentration of carbon dioxide in the atmosphere. Cloud cover is one factor that explains the high sensitivity of the Earth’s climate. Reducing cloud density and atmospheric darkening in the Eocene period has therefore increased the warming caused by carbon dioxide.

Similar additional conditions are currently observed, but the sensitivity of the climate during the lifetime of the current generation will not reach what it was in the Eocene era.

The early Eocene era (about 48-56 million years ago) was the warmest phase in Earth’s history 66 million years ago. It began with the maximum thermal limit of the pliocene-eocene era, which was characterized by a sharp rise in temperature, causing the extinction of many species. The Earth’s surface temperature was then 14 degrees Celsius higher, and the concentration of carbon dioxide was 1,000 parts per million, twice the rate today.

According to climate scientists, if action is not taken to reduce the amount of carbon dioxide emissions, it is not unlikely that its level will reach 1,000 parts per million by the end of this century.

The climate model CESM1.2 is one of the climate models used by the IPCC experts in the preparation of the AR5.


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