4,500-Year Climate Record Reconstructed from Kondagai Lake

Recently, a team of scientists reconstructed one of the most detailed climate records from peninsular India by analysing sediments from the Kondagai inland lake in Sivaganga district, Tamil Nadu, offering fresh insights into monsoon variability, ecosystems and human settlement over nearly 4,500 years.

• The study identified 3 major Late Holocene climatic phases- the 4.2 ka (kiloannum) arid event, the 3.2 ka dry phase, and the Roman Warm Period, linked to monsoon variability and hydrological change.
• The lake is located near Keeladi, providing crucial environmental context for understanding how Sangam-era urban settlements adapted to climate stress and water scarcity.
....