Rising seas may submerge parts of Tamil Nadu coast by mid-century
Major parts of coastal districts like Chennai, Nagapattinam, Thoothukudi, and Cuddalore could face permanent inundation by mid-century. While average sea-level rise might range between 20 and 30 cm by 2050, the impact is intensified by high tides and cyclonic storm surges, which can render entire coastal settlements uninhabitable.