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Chennai is apt to go hotter and wetter implicit the adjacent 14 years, with summertime maximum temperatures projected to emergence by 1°C and southwest monsoon strength expected to summation by 12%, according to a caller clime projections study released by Azim Premji University connected Thursday.
The report, Indian Coastal Region: Climate Projections 2021–2040, warns that clime alteration is nary longer a distant menace and India’s coastal regions are already entering a play of important biology transition. Using high-resolution 25x25-km clime data, the survey maps district-level changes expected betwixt 2021 and 2040 against a 1960s baseline.
Besides Chennai, Nagapattinam territory is projected to person 20% much rainfall during the northeast monsoon, portion coastal communities successful Rameswaram and Thoothukudi districts are already experiencing disruptions linked to changing upwind patterns and rising oversea temperatures, the study said.
Across India’s coastline, mean temperatures are projected to summation by astir 1.5°C by 2040, with astir 40 coastal districts apt to grounds summertime somesthesia increases exceeding 1°C. Coastal districts successful Tamil Nadu and Kerala are besides expected to acquisition wet-bulb temperatures approaching 31°C, levels considered unsafe to quality health.
The study highlights aggregate clime risks facing coastal India, including rising oversea levels, coastal erosion, intensified rainfall, and stronger cyclones fuelled by warming seas. Under a mean emissions scenario, planetary oversea levels are projected to emergence by astir 15 cm by 2050, expanding the menace to susceptible coastal settlements and ecosystems.
Sea-surface temperatures are besides rising rapidly, expanding the likelihood of aggravated tropical cyclones. The survey said warming seas were already affecting accepted livelihoods, from sportfishing communities coping with shifting food stocks to coastal industries babelike connected unchangeable marine conditions.
Speaking astatine the report’s release, Santonu Goswami, School of Climate Change & Sustainability, Azim Premji University, said the findings underlined the request to rethink infrastructure and governance systems to hole for clime impacts that were expected wrong the adjacent decennary and a half.
