France has just endured its most intense heatwave ever, according to reporting that has drawn attention to both the meteorology and the growing role of climate change in making extreme heat more likely and more severe.

The climate expert explains that the key drivers are not only hotter air masses arriving over France, but also the way the atmosphere can “lock” patterns in place for days. When high-pressure systems persist and winds fail to clear heat and humidity away, temperatures rise further and the hottest conditions last longer than they otherwise would. In addition, the expert highlights that human-driven warming increases the baseline heat level, so a weather pattern that might have been rare in the past can produce record-breaking temperatures now.

Heat risk is also shaped by humidity, which increases heat stress even when thermometer readings look similar. The expert notes that urban areas often amplify heat through the urban heat island effect, while drought-strained soils and stressed vegetation can worsen local conditions by reducing natural cooling.

Beyond the immediate emergency, the expert stresses that the real challenge is reducing deaths and damage during future extremes. That includes rapid, targeted public health responses—heat-health alerts, cooling support for vulnerable people, and operational adjustments for work, schools, and public services—while also prioritizing long-term adaptation measures such as urban greening, cooler building materials, improved shelter access, and better heat planning.

Finally, the expert underscores that short-term forecasts are useful for managing daily risk, but the longer-term signal from both observations and climate research is clear: heatwaves in Europe are becoming more frequent and more intense, making adaptation and emission reductions both necessary.