The new global projections are part of the 8th annual report of the Lancet Countdown on Health and Climate Change.
If temperatures rise by 2°C (over pre-industrial levels) by the end of the century then yearly heat-related deaths are projected to increase 370% by mid-century.
India suffered a $219-billion potential association income loss due to exposure to high temperatures.
Also, 191 billion potential labour hours were lost due to heat exposure in 2022, a jump of 54 per cent from 1991-2000.
Agricultural workers were hit the hardest, seeing 64 per cent of the potential hours lost and 5.5 per cent of the potential income losses in 2022.
Globally, heat-related deaths of people older than 65 have increased by 85 per cent since the 1990s.