France is keeping its ORSAN health emergency plan at maximum readiness after a preliminary estimate of about 1,000 excess deaths. The decision turns the heatwave into a test of whether hospitals, care systems and urban infrastructure have adapted sufficiently since the catastrophe of 2003.
France will keep its national health emergency response at its highest level in case extreme temperatures return, after a preliminary estimate indicated around 1,000 excess deaths during the late-June heatwave.
Prime Minister Sebastien Lecornu said the ORSAN plan would remain fully activated for the coming days because another heat episode was possible. The decision preserves national and regional coordination for hospitals and emergency services even as temperatures ease.
The mortality estimate remains provisional. It compares observed deaths with the expected baseline and will change as delayed certificates and medical data are received. It should not be presented as a completed count of deaths individually certified as caused by heat.
Even with that caution, keeping ORSAN at maximum readiness signals that the government considers the pressure on health services and vulnerable people to be unresolved.
What ORSAN changes
ORSAN is the framework used to organise the health system during exceptional demand, including epidemics, mass-casualty events and prolonged climate emergencies. At its highest level, authorities can coordinate hospital capacity, patient transfers, staffing and regional crisis management.
The plan matters because heat does not produce a single visible incident. Patients arrive over days with dehydration, hyperthermia, cardiac stress, respiratory problems or the deterioration of chronic illness. Pressure continues after the temperature peak because vulnerable bodies may already be exhausted.
Emergency readiness must therefore remain in place longer than the weather warning. Mortuary capacity, home-care services and nursing staff can all experience delayed strain.
The deaths occurred largely out of sight
Detailed reporting from France found a 40% increase in deaths at home, with 85% of excess deaths among people aged 65 and over. Some emergency doctors described apartments reaching 33C or 34C and patients unable to regulate their body temperature.
This shifts the accountability question beyond hospitals. A health service can maintain beds and ambulances yet still fail to reach an older person living alone in an overheated flat.
Municipal welfare lists, calls from community workers, access to cooled public spaces and transport to those spaces become part of emergency medicine. The response also depends on relatives, neighbours, housing providers and home-care organisations receiving clear warnings early enough to act.
France has adapted since 2003, but unevenly
The 2003 heatwave killed around 15,000 people in France and led to major reforms. Nursing homes introduced cooled rooms, warning systems improved and public-health authorities developed clearer response plans.
Those changes appear to have reduced some institutional vulnerability. Current reports have not described the same concentration of deaths in care homes. The pressure has moved towards people ageing at home, often in housing that traps heat and lacks external shading or effective cooling.
EU Today warned before the peak that France was preparing for potentially record temperatures. The mortality estimate now provides the harder measure of whether warnings were translated into protection.
Infrastructure is part of public health
Repeated heatwaves cannot be managed only through emergency plans. Urban design and housing determine exposure before a doctor becomes involved.
Trees, shaded streets, reflective roofs and insulation that protects against summer heat can lower indoor temperatures. Building rules historically designed to retain warmth during winter need to account for hotter summers. Schools, hospitals and care facilities require cooling strategies that do not overload the electricity grid.
Transport is also relevant. A cooling centre is of little use to someone who cannot reach it safely. Rail disruption, overheated buses and dangerous walking conditions can isolate precisely the people most at risk.
Maximum alert should create evidence
The government will need to publish more than a final mortality number. It should identify which regions and living situations were most affected, how quickly emergency measures were activated and whether local authorities had adequate staff and cooled spaces.
The data should also distinguish the effectiveness of different interventions. General advice to drink water is not enough for a person with limited mobility, cognitive impairment or a medical condition affecting fluid intake.
ORSAN activation can coordinate the immediate response. It should also produce an after-action review that informs housing, labour and energy policy.
The next heatwave is the planning horizon
Keeping the plan at its highest level is prudent because a second episode could hit people and services that have not fully recovered. It also acknowledges that extreme heat is no longer a rare event managed once a decade.
France now faces two tests. The first is whether maximum readiness prevents additional deaths if temperatures rise again. The second is whether the lessons of this episode lead to investment before the next summer.
Emergency medicine can reduce the human toll, but it cannot permanently compensate for overheated homes, insufficient urban shade and isolated elderly residents. The 1,000-death estimate is therefore not only a health statistic. It is a measure of how much adaptation remains unfinished.
