WMO warns of risk of heart attacks, deaths as heatwave intensifies

18 July 2023 - 11:55 By Emma Farge and Gabrielle Tetrault-Farber
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A restaurant employee sprays passersby with a water hose during hot weather caused by the Charon heat wave, in Rome, Italy, on Monday, July 17, 2023. The heat wave engulfing the Mediterranean is set to intensify as another Saharan anticyclone threatens record temperatures from Italy to Greece.
A restaurant employee sprays passersby with a water hose during hot weather caused by the Charon heat wave, in Rome, Italy, on Monday, July 17, 2023. The heat wave engulfing the Mediterranean is set to intensify as another Saharan anticyclone threatens record temperatures from Italy to Greece.
Image: Gaia Squarci/Bloomberg

The heatwave engulfing the northern hemisphere is set to intensify this week, causing overnight temperatures to surge and leading to an increased risk of heart attacks and deaths, the World Meteorological Organization said on Tuesday.

“Temperatures in North America, Asia, and across North Africa and the Mediterranean will be above 40°C for a prolonged number of days this week as the heatwave intensifies,” the WMO said in a statement.

Overnight minimum temperatures were also set to reach new highs, according to the WMO, creating risks of increased cases of heart attacks and deaths.

“While most of the attention focuses on daytime maximum temperatures, it is the overnight temperatures which have the biggest health risks, especially for vulnerable populations,” the WMO said.

Speaking to reporters in Geneva, a researcher specialised in the study of heatwaves said that the high temperatures Europe was experiencing currently were bound to increase.

“The Mediterranean heatwave is big but nothing like what's been through North Africa,” said John Nairn, Senior Extreme Heat Advisor for WMO. “It's developing into Europe at this stage.”

Reuters


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