The heat wave 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.
BEHAVIORS THAT COULD CAUSE A HEART ATTACK
"Whilst 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.
A man shelters from the sun with a t-shirt near the Colosseum during a heat wave in Rome, Italy, on July 11, 2023. (REUTERS/Guglielmo Mangiapne/File Photo)
Speaking to reporters in Geneva, a researcher specialised in the study of heat waves 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."