Severe multi-year drought coincident with Hittite collapse around 1198-1196 BC

Area of Science:

• Paleoclimatology and Archaeology
• Ancient Near Eastern Studies
• Climate Change Impacts on Civilizations

Background:

• Climate change poses a significant threat to human history, yet specific impacts remain unclear.
• Past civilizations have faced climate shifts, but precise links between climate events and societal collapse are often missing.
• The Hittite Empire, a major ancient power, was centered in a vulnerable semi-arid region.

Purpose of the Study:

• To investigate the precise climate conditions and their correlation with the collapse of the Hittite Empire around 1200 BC.
• To understand how extreme climate events can overwhelm societal adaptation and resilience.

Main Methods:

• Analysis of high-resolution dryness records using tree ring width and stable isotope data from contemporary juniper trees in Anatolia.
• Correlation of paleoclimatic data with the archaeological and historical timelines of the Hittite Empire.

Main Results:

• Identification of an exceptionally severe and continuous dry period in central Anatolia from approximately 1198 to 1196 BC (±3 years).
• This intense drought event is pinpointed as a potential tipping point for the Hittite civilization.
• The findings suggest that consecutive extreme climate events can exceed the adaptive capacity of even resilient societies.

Conclusions:

• A severe multi-year drought around 1198 BC was a critical factor in the collapse of the Hittite Empire.
• This study highlights the vulnerability of ancient societies to abrupt and extreme climate shifts.
• Understanding past climate-society interactions is crucial for assessing future climate change risks.