Coastal India: Dangerously Hot & Wet Future

Coastal regions of India are entering a period of significant environmental transition, with climate change no longer a distant threat. Chennai, specifically, is projected to become hotter and wetter over the next 14 years.

Summer maximum temperatures in Chennai are expected to rise by 1°C, while southwest monsoon intensity may increase by 12%. Other districts like Nagapattinam could see a 20% rainfall increase during the northeast monsoon.

Nationwide, average coastal temperatures are predicted to rise by approximately 1.5°C by 2040. Nearly 40 coastal districts anticipate summer temperature hikes exceeding 1°C.

Tamil Nadu and Kerala's coastal areas are particularly at risk, with wet-bulb temperatures potentially reaching dangerous levels of 31°C.

These changes are attributed to rising sea levels, coastal erosion, intensified rainfall, and stronger cyclones fueled by warming seas. Global sea levels could rise by about 15 cm by 2050.

Warming seas also contribute to more intense tropical cyclones and affect traditional livelihoods, such as fishing communities facing shifting fish stocks.

Experts emphasize the urgent need to rethink infrastructure and governance systems to prepare for these climate impacts within the next decade and a half.