South Asia may experience impossible to survive heatwaves by 2100
By 2100 South Asia, which contains 20% of the world’s population, could experience heatwaves that people will be unable to survive without protection and which could devastate food supplies, according to research in Science Advances. The most dangerous effects of hot weather occur when high temperatures combine with high humidity to create a “wet-bulb temperature”. At present, 2% of the Indian population is exposed to 32C wet-bulb temperatures. This could rise to 70% of the population by 2100. Reductions in carbon emissions in line with the Paris Climate Agreement would significantly reduce the risk of such heatwaves.

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