Scientists read lake sediments to track rain over 4,600 years.
Four major climate periods were identified, including a dry spell 4,200 years ago.
Monsoon changes altered lake size, plant types, and farming methods.
Ancient people used manure and different crops to adapt.
The research aids modern planning for water and food security.
The study found four big climate periods, including a very dry time 4,200 years ago.
Changes in the Indian summer monsoon affected lake water levels, plants, and farming.
Early farmers adapted by adjusting their crops and using animal manure.
These ancient clues help scientists plan for future rain and food security. 🌦️
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