Note: Single-source report; awaiting corroboration.
Europe has recently experienced heatwaves that broke historic records set in the 1970s, reflecting a continental warming of about two degrees Celsius over the past 50 years, according to the World Meteorological Organization (WMO). Europe is identified as the fastest warming continent globally, with increased temperature extremes now documented.
These elevated heat events are associated with record-high sea surface temperatures in June, partly driven by a strong El Niño phenomenon in the equatorial Pacific, according to the Copernicus Climate Change Service. Globally, the extra-polar ocean also recorded its highest average sea surface temperature for June.
The heatwave has had severe health impacts, contributing to widespread heat-related deaths across Europe. The World Health Organization (WHO) indicated that more than 200,000 such deaths have occurred in the region over the past four years, while WMO estimates an annual global toll of approximately 489,000 heat-related deaths between 2000 and 2019. Vulnerable populations include older adults, children, pregnant women, outdoor workers, and individuals with chronic illnesses.
In addition to daytime highs, the heat is marked by increased nighttime temperatures. 'Tropical nights'—when temperatures stay above 20°C—are becoming more frequent, especially in urban areas. These conditions heighten health risks by limiting the body's ability to recover overnight.
Environmental effects include widespread dryness, drought, and significant wildfire activity, particularly impacting parts of eastern and western Europe. The July heatwave continues in some western regions, accompanied by violent storms and an escalating wildfire risk in countries such as France and across the Iberian Peninsula.