The productivity of people drops by 4 per cent per degree when temperatures rise above 27 degrees Celsius in workplaces requiring manual labour, says a study which drew its data from the Indian manufacturing sector.
A one-degree increase in the ten-day temperature average raises the probability that a worker will be absent by as much as 5 per cent, it said.
The study on the Impact of Temperature on Productivity and Labour Supply: Evidence from Indian Manufacturing was conducted by the Energy Policy Institute at the University of Chicago.
It also talked about the impact of high temperature on absenteeism at work.
“Absenteeism increases in both labour-intensive and automated manufacturing processes,” the study said.
It said installing air conditioning or other climate control measures in the workplace mitigates productivity declines, but not absenteeism.