HomeEnvironmentEarly Human Settlements are linked with past Climate Change

Early Human Settlements are linked with past Climate Change

A study published in Nature by an international team of scientists provides clear evidence of a link between astronomical evolution and human evolution. By combining an extensive database of fossils and archeological artifacts with a new unprecedented supercomputer model that mimics the global climate history of 2 million years ago, a team of experts in mimicry, anthropology and ecology was able to determine the location. around. conditions that ancient peoples may have lived through.

The impact of climate change on Human evolution

The impact of climate change on human evolution is long overdue, but difficult to demonstrate due to the lack of climate records near human remains. To address this issue, the team instead investigated what the climate in computer simulations was like in times and places where people lived, according to archeological history. This reveals the popular natural conditions of different groups of hominins [1]. From there, the team looked at all the locations and times when those conditions occurred in the model, creating dynamic maps of potential hominin locations.

“Although different groups of ancient peoples favored different climates, their habitats all reacted to climate change caused by astronomical changes in the earth’s moving, moving, and orbital eccentricity with a span of 21 thousand to 400 thousand years,” he said. -Axel Timmermann, leader. research author and Director of the IBS Center for Climate Physics (ICCP) at Pusan ​​National University in South Korea.

Past climate change fluctuations

To test the strength of the relationship between climate and human habitat, scientists repeated their analysis, but over the years fossils have moved like a stack of cards. If past evolutionary changes have not had an effect on where and when people live, then both approaches can lead to similar habitats. However, researchers found significant differences in the habitat patterns of the three most recent hominin groups where shuffled years and real fossils are used.

“This result shows that at least 500 years ago the actual sequence of past climate change, including the ice cycle, played a key role in determining where the various hominin groups lived and where their remains were found,” said Prof. Timmermann.

The expert opinion

“The next question we intend to answer is whether the habitats of different peoples meet in space and time. The places of contact in the past provide important information about the possible sequence of species and hybrids,” said Prof. Pasquale Raia of the Università di Napoli Federico II. , in Naples, Italy, who together with his team of researchers compiled a collection of human and archaeological data used in this study.

 From the analysis of the contact area, researchers then discovered the hominin family tree, according to Neanderthals and Denisovans who may have been found in the Eurasian clade of Homo heidelbergensis 500-400 thousand years ago, and the roots of Homo sapiens can be traced back to South Africa. Statistics of Homo heidelbergensis are as late as the next 300 thousand years.

“Our climate-based reconstruction of hominin lines is exactly the same as the latest findings from genetic data or analysis of morphological differences in human bones, which increases our confidence in the results,” notes Drs. JiaoyangRuan, co-author of the study and fellow postdoctoral research fellow at the IBS Climate Physics Institute.

New studies revealed

New research has been made possible by the use of one of South Korea’s fastest-growing computers called Aleph. Located at the headquarters of the Institute for Basic Science in Daejeon, Aleph has run non-stop for more than 6 months to complete the longest simulation of the climate model to date. “The model has generated 500 Terabytes data, enough to fill several hundred hard disks,” said Drs. Kyung-Sook Yun, a researcher at the IBS Center for Climate Physics conducting research.

“It is the first continuous simulation of a high-quality climate model that encompasses the natural history of the past two million years, representing climate responses to shrinkage and shrinkage, changes in the concentration of previous greenhouse gases, and significant changes in the frequency of ice cycles nearly a million years ago,” adds Dr. Yun.

“To date, the paleoanthropological community has not exercised such absolute power as a continuous parallel paleoclimate model. Our research clearly demonstrates the importance of well-established climate models to address basic questions about our human origin,” said Prof. Christoph Zollikofer of the University. from Zurich, Switzerland and co-author of the study.

Going beyond the question of the habitat of the first humans, times and places of origin of species, the team of researchers went on to discuss how people may have become accustomed to different food sources over the past two million years. “When we looked at the data of the five major hominin groups, we found an interesting pattern. The ancient African hominins about 2-1 million years ago preferred stable climates. This put pressure on them in small habitats. 800 thousand years ago, a group known under the umbrella name Homo heidelbergensis became accustomed to a wide range of available food resources, enabling them to become global migrants, reaching remote regions in Europe and eastern Asia, “said Elke Zeller, a PhD student. Pusan ​​National University and co-author of the study.

Source Journal Reference:Axel Timmermann, Kyung-Sook Yun, Pasquale Raia, JiaoyangRuan, Alessandro Mondanaro, Elke Zeller, Christoph Zollikofer, Marcia Ponce de León, Danielle Lemmon, Matteo Willeit, Andrey Ganopolski. Climate effects on archaic human habitats and species successions. Nature, 2022; DOI: 10.1038/s41586-022-04600-9

READ ALSO : Glaciers in the Antarctic clouds allow more solar energy to reach the surface of the Earth

[responsivevoice_button buttontext="Listen This Post" voice="Hindi Female"]

LEAVE A REPLY

Please enter your comment!
Please enter your name here

RELATED ARTICLES

Trending News

Global Warming Slowing Earth’s Rotation: Clocks May Need Adjustment

A recent study published in Nature suggests that global warming-induced polar ice melt is causing the Earth to spin...

US Military Downs Four Iranian-backed Houthi Drones Threatening Warship in Red Sea

In a recent development, the United States military announced on Wednesday that it successfully intercepted and destroyed four drones...

Danish Researchers Develop Artificial intelligence Algorithm to Predict Life Events, Including Death

Danish researchers, with the aid of artificial intelligence and data from millions of individuals, have crafted an algorithm capable...

Design Flaw in Francis Scott Key Bridge Led to Collapse, Highlighting Larger Safety Concerns for US Bridges

Engineers have identified a significant design flaw in the structure of Baltimore's Francis Scott Key Bridge, which led to...