The climate theory casting new light on the history of Chinese civilisation
- Researchers say that when 500-year-long sun cycles brought warmth, communities flourished, but when the Earth cooled, ancient societies collapsed
According to the study by a team at the Institute of Geology and Geophysics in Beijing published in the science journal Nature Communications this month, whenever the climate warmed, Chinese civilisation prospered and when it cooled, it declined.
While historians have used various social and economic factors to explain changes over the millennia, Dr Xu Deke, lead author of the paper, and his colleagues said that while people played their part, their study indicated that cycles in solar activity influenced human activity.
“We just point out there is a natural constraint on human efforts,” Xu said.
Previous research linking Chinese history to climate relied on written records, but ancient texts contained only subjective descriptions of weather and social development. The records also go back only so far – writing in China was not invented until 3,600 years ago.