Heat danger limit may be lower than theorised

Harvard researchers question the wet-bulb temperature survival threshold, suggesting it may be closer to 31°C instead of the widely accepted 35°C.

The widely accepted wet-bulb temperature survival threshold of 35°C is being questioned after recent physiological studies suggest the limit may actually be closer to 31°C, Harvard researchers revealed following a recent interdisciplinary conference with the Union environment ministry to discuss heat stress in India and adaptation interventions.

Heat danger limit may be lower than theorised

Wet-bulb temperature combines heat and humidity measurements to indicate how effectively the human body can cool itself through sweating when outdoors. Unlike regular air temperature readings, wet-bulb measurements reflect the body’s cooling capacity