The Earth's climate until the year 2150 compares to the climate 50 million years ago – Technology News, Firstpost


Since the nineteenth century, we humans have reversed a natural long-term cooling trend that dates back at least 50 million years. And all that took us, according to the study, was two centuries.

The Earth's climate until 2030 will resemble the average Pliocene period of Earth, which occurred almost 3 million years ago in geological time. If our emissions continue unchecked, our climate in 2150 compares to the warm, almost ice-free Eocene period 50 million years ago.

"If we think about the future in terms of the past, where we are going is unknown territory for human society," said Kevin Burke, lead author of the study and a paleoecologist at the University of Wisconsin-Madison. said university newspaper.

"We are moving towards very dramatic changes over an extremely rapid period of time, reversing a trend of planetary cooling in a matter of centuries."

All species that roamed the Earth and swam in their oceans had an ancestor who survived both the Eocene and Pliocene eras. If humans, the flora and fauna of today and the near future can adapt to these relatively rapid changes, this is not a certainty.

The accelerated rate of change seems to be faster than anything experienced by life on the planet before.

"We can use the past as a criterion for understanding the future, which is so unlike anything we have experienced in our lives," paleoecologist John "Jack" Williams, a professor of geography at the University of Wisconsin-Madison, said the press.

"People have a hard time projecting what the world looks like five or ten years from now. This is a tool to predict this – how we corner these paths and use deep geological analogues from Earth's history to think about changes in time. "

Deep geology studies examine the radioactive components of ancient Earth that have accumulated along a sample piece of land to date the formation and conditions of that geologic time period. It is believed that the soil and organic matter of the Pliocene would be different from those of the Eocene era in its deep geological composition.

Life in the Pliocene. Image: Julius Csotonyi / SN

Life in the Pliocene. Image: Julius Csotonyi / SN

The models made in the study show that these climates first appeared in the center of the continents and then spread to the oceans. Rising temperatures, increased precipitation, melting of polar ice caps, and temperate climates near the Earth's poles are common changes in the Pliocene and nowadays.

The findings of the study have more implications for geologists, climate change scientists and Earth historians, but researchers find the right balance between alarm and optimism.

On the one hand, the Earth is headed in unfamiliar territory over the next two or three generations. On the other hand, life has long proved to be resilient.

"We have seen great things happen in Earth's history – new species have evolved, life persists and species survive. But many species will be lost and we live on this planet, "Williams said the press.

"These are things to worry about, so this work points out how we can use our Earth history and history to understand the changes today and how we can best adapt."


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