Major Cities See 25% Jump in Extreme Heat Days
6 Articles
6 Articles
Major Cities See 25% Jump in Extreme Heat Days
The world’s biggest capital cities are now sweltering under 25 percent more extremely hot days each year than in the 1990s, an analysis has found. In 2024, the International Institute For Environment and Development (IIED) examined rising levels of extreme heat in the world’s 20 most populous capital cities over the previous 30 years (1994–2023). The analysis revealed an inexorable increase in the number of very hot days, meaning 35C or above. T…
October 1, 2025.- The current climate crisis leaves its mark on the world level, also marked today in the temperature of the 40 most populated capitals, according to a new study by the International Institute for Environment and Development (IIED). These cities registered an increase of 25...
The number of hot days has increased significantly in the world's largest capitals. Urgent action is needed, says researcher
Capitals from London to Tokyo urgently need to take measures to protect people from deadly high temperatures. Berlin has recorded a 40 percent rise in hot days since 1990, Brasilia even of 1000 percent The world's largest capitals today suffer from 25 percent more extremely hot days per year than in the 1990s, resulting in a new analysis of weather data. Without urgent measures to protect millions of people from high temperatures, more and more …


The world's biggest cities, from London and Washington to Tokyo and Beijing, are experiencing record heat, with the number of extremely hot days increasing by as many as 25
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