A new study published in Climate of the Past reveals that 127,000 years ago, the Levant region experienced significantly wetter conditions than today, potentially enabling early human migration out of Africa. The research, led by Hebrew University of Jerusalem scientists, found that during the Last Interglacial peak, the same Red Sea Trough weather pattern that now brings brief dusty transitions created intense, localized rainfall in the region.
The findings challenge the traditional view of the Levant as merely a dry bridge between continents during ancient times. Instead, the research suggests the region was dynamic with relatively wet conditions that would have been crucial for sustaining human populations during their migration. This climatic shift represents a fundamental change in understanding how environmental conditions shaped early human movement patterns.
The study examined ancient climate records to reconstruct weather patterns from 127,000 years ago during the Last Interglacial period. The research team, including Ph.D. student Efraim Bril, Prof. Adi Torfstein, and Dr. Assaf Hochman from the Institute of Earth Sciences, used these records to demonstrate how the Red Sea Trough system operated differently in the ancient past.
The research suggests that these wetter conditions provided the necessary water sources for early humans to successfully traverse the region during their migration out of Africa. This finding adds new evidence to theories about how climate changes influenced major human migration events. The study contributes to ongoing scientific discussions about the environmental factors that shaped early human dispersal patterns across continents.