Deadly temperatures expected to arrive later this century are already here

Global weather station data show dangerously hot and humid days are becoming much more common

New Delhi

Dangerously high combinations of heat and humidity are already plaguing places like New Delhi (shown), putting outdoor workers at greater risk of heat-related illness or death. New research finds that such extreme events have been increasing over the last 40 years.

ErmakovaElena/iStock Editorial/Getty Images Plus

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