How African Sahara amplified a drought in Asia -The Hindu-06-09-2020
Recent scientific studies point to a connection between the end of the Green Sahara and this mega-drought.
As the Sahara started losing its vegetation, the reduced plant growth led to increased airborne dust which cooled the Indian Ocean and shifted the atmospheric circulation patterns and caused a condition similar to today’s El Niño events.
This ultimately led to a large reduction in monsoon moisture across Southeast Asia that lasted more than 1,000 years.
About 4,000 to 5,000 years ago, a severe drought crippled countries of Southeast Asia forcing a shift in human settlement patterns of the area and also induced many lifestyle changes in the mainland Southeast Asian countries of Myanmar, Thailand, Laos, Cambodia and Vietnam.
Previous studies have shown the link between the end of the Green Sahara and the collapse of the Akkadian Empire of Mesopotamia and the de-urbanisation of the Indus Valley Civilization.