Despite the onset of September, often marking the beginning of the cooler fall season, Japan has been experiencing unusually high temperatures. As per the latest readings, 28 locations nationwide have been classified as having a "heatwave day." Residents have been urged to take necessary precautions to protect themselves from heat-related illnesses, as temperatures hover around 35 degrees Celsius. The phenomenon, seen as part of a changing global climate, has stoked concerns among policy makers and climate scientists.

The Japanese population is heavily affected by these heatwaves, given the country's high population density and high levels of urbanisation which exacerbate the heat island effect. Sudden spikes in temperatures can lead to serious health issues among vulnerable groups like the elderly. Many Japanese people are concerned about the increasing number and intensity of heatwave days, seeing them as a sign of accelerating climate change.

Heatwaves are also a concern in parts of the US and EU, where they have caused deaths, particularly among vulnerable populations. However, appropriate infrastructure and early warning systems in these countries can mean the population may be better prepared to handle such conditions. Climate change mitigation efforts are also more comprehensive in these regions.