Climate scientists said a record-breaking heatwave across Western Europe would have been virtually impossible without human-caused climate change [1].

The findings highlight a critical shift in weather patterns, suggesting that human activity is now a primary driver of extreme temperature events that threaten public health and infrastructure.

The heatwave occurred during the final week of June 2024, specifically from June 24 to June 30 [1]. The extreme weather affected several countries, including France, Spain, and Italy [1]. Researchers who study extreme-weather attribution said the event's extreme night-time temperatures were about 100 times more likely [1] because of the increase in baseline temperatures caused by human-driven global warming [1].

This attribution analysis indicates that the warming of the planet has altered the probability of such events to a degree that they would not occur in a natural climate state. While some analysts suggest that the science of weather attribution is still evolving, the data from this specific event points to a direct link between carbon emissions and the severity of the heat [1].

The intensity of the heatwave was particularly noted in its night-time peaks, which prevented the environment from cooling down. This lack of nocturnal relief often exacerbates the danger of heat-related illnesses, a trend that scientists link to the rising global temperature baseline [1].

“The heatwave would have been ‘virtually impossible’ without human-caused climate change.”

This event demonstrates the growing capability of attribution science to link specific weather disasters to global warming. By quantifying the increased likelihood of extreme heat, scientists are providing a clearer connection between industrial emissions and immediate regional climate impacts, moving the conversation from general trends to specific, record-breaking events.