Small rise in global temperatures would affect hundreds of millions of people and could cause a sharp rise in deaths
Life-threatening periods of high heat and humidity will spread rapidly across the world with only a small increase in global temperatures, a study has found, which could cause a sharp acceleration in the number of deaths resulting from the climate crisis.
The extremes, which can be fatal to healthy people within six hours, could affect hundreds of millions of people unused to such conditions. As a result, heat deaths could rise quickly unless serious efforts to prepare populations were undertaken urgently, the researcher said.
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