New Delhi, June 24 -- The number of 'dangerous humid heat days' - those where the daily maximum wet-bulb temperature, a measure that combines heat and humidity to capture how much cooling sweating can provide a person, was 25degC (77degF) or higher - has shot up across India, from an average of 101 such days a year in the 1970s to 141 days a year during 2016-2025, a new global study has found.

Released on Wednesday by the US-based NGO Climate Central, the study attributed the increase primarily to human-induced climate crisis. Globally, it said, the number of such days has risen from 10 a year in the 1970s to 23 a year in the last decade (2016-25).

The study covered 254 countries and territories and 961 cities worldwide, and found a sha...