Notes: Drought caused Indus Valley civilization’s decline

Researchers: Ancient, centuries-long drought caused Indus Valley decline
A 200-year drought brought on the decline of the Indus Valley about 4,000 years ago, according to palaeoclimatologists. The event mirrors similar civilization declines in Egypt, Greece and Mesopotamia that were caused by lengthy droughts, according to a report in Geology. Researchers found evidence in ancient lake sediment that suggests that the vital monsoon cycle came to a halt 4,200 years ago, ultimately causing residents to leave the area. The Indus Valley is in present-day Pakistan and India. Nature (free content) (3/3)

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