Heatwave and wildfires strain European energy grids and force mass evacuations
A fourth intense heatwave is sweeping across Europe, exacerbating devastating wildfires and severe droughts that are now disrupting energy production, public health, and regional stability.
France and Spain are on high alert as a fourth summer heatwave brings temperatures into the high 30s and low 40s Celsius, raising fears of reignited wildfires. Authorities have evacuated or confined approximately 330,000 people since last week as blazes spread across the continent.
The human and ecological cost is mounting rapidly. Two firefighters died after being trapped in their engine on the Greek island of Crete, prompting the evacuation of multiple villages in the Rethymno region. In France, volunteers and aircraft are battling major outbreaks near Lanton and Lège-Cap Ferret, with local helper Jean-Claude Bonnet describing the destruction as an ecological disaster.
Beyond immediate safety, the extreme weather is directly impacting critical European infrastructure. In Hungary, the Paks nuclear power plant is shutting down one of its four reactors due to record-low water levels in the Danube river, which supplies essential cooling water.
This facility produces nearly half of Hungary’s electricity, and the operator had already reduced output at another unit by 254 megawatts earlier in the week. Such constraints highlight the vulnerability of continental energy markets to climate-driven resource shortages.
Public health systems are also facing severe strain from degrading environmental conditions. The European Environment Agency reports large areas of very to extremely poor air quality across Spain and near Bordeaux due to wildfire smoke.
A 2024 study in The Lancet estimates that smoke from landscape fires causes approximately 1.5 million deaths globally each year. This underscores the long-term economic burden of these recurring events on regional healthcare systems.
The scale of the crisis has necessitated a coordinated cross-border response. European Commission president Ursula von der Leyen highlighted that Romania and Greece are extending their firefighting missions in affected regions, with Poland scheduled to provide additional support.
Despite some progress, including the technical stabilisation of a major fire near Madrid, officials warn the situation remains highly complex. Spanish interior minister Fernando Grande-Marlaska cautioned that the country faces three very tough days ahead as rising temperatures and strong winds threaten to undo recent containment efforts.
