A research group from the National Institute for Environmental Studies, Kyoto University, and University of Tsukuba investigated the effects of heat stress caused by global warming by shifting the time zone for outdoor work to early morning, and found that the effects were limited. ..The research group believes that it is unrealistic to deal with global warming measures only by changing working hours.
According to the National Institute for Environmental Studies, the research group estimated the hourly heat index values that affect work and calculated the percentage of hours that can be safely worked outdoors while avoiding the risk of heat stroke. ..
The result was 9 hours and 5 minutes when the working hours were calculated from 5 am to 20 pm under the climatic conditions before the warming progressed.Applying a model for predicting the progress of global warming to this, predicting the situation in the 2090s, if the pace of progress of global warming is the fastest, in low latitude regions such as Southeast Asia, the work start time must be accelerated by 6 to 8 hours, and the world It turned out that it was necessary to start work earlier by 5.7 hours on average.
Assuming that the pace of global warming is the fastest, if the working hours are not shifted, a GDP (gross domestic product) loss of about 2.4% is expected, but if a shift is introduced, it will be about 1.6%. It also became clear that it would be a loss.
The research group said that it is unrealistic to deal with only the shift of working hours in order to suppress economic loss, and it is necessary to suppress the warming itself and take measures other than the shift of working hours. I'm watching.
Paper information:[Earth's Future] Limited role of working time shift in offsetting the increasing occupational-health cost of heat exposure
