Chennai’s future in troubled waters: Unchecked urban growth, climate change drive coastal risk; study warns 91% of TN’s coastal zone at high flood risk by 2100

A recent study warns that Tamil Nadu's coastal flood risk, extending 25 km inland and encompassing Chennai, is escalating. Unchecked urbanization, land use changes, and erratic rainfall are key factors. Chennai, Cuddalore, and Nagapattinam face heightened vulnerability, potentially shifting to very high-risk zones under moderate to high emission scenarios.

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