KLIMAAT
De temperatuur in steden stijgt wereldwijd
June 28, 2024 - The number of days per year with temperatures reaching 35°C in 20 of the world’s largest capital cities – collectively home to some 300 million people – has risen 52% over the past 30 years.
The number of days per year where temperatures reached 35°C or more in 20 of the world’s most populous cities has soared over the past 30 years.
Using surface temperature data gathered from airport weather stations, researchers for the International Institute for Environment and Development (IIED) have quantified the growing threat of extreme heat in some of the world's largest capital cities.
From 1994 to 2023, Delhi has endured 4,222 days above 35°C. Bangkok has seen 3,447 and Tehran 2,095. At the other end of the scale, Mexico City has seen two days, London seven days, and Moscow 17.
In 1994 there were a total 468 days of extreme heat. In 2023 the figure reached 738 – a rise of 52%, based on the annualised trend line.