France is sweltering under an unprecedented heatwave, with red alerts declared across half the country. By midday, nearly 5,000 schools had shuttered, turning classrooms into ghostly ovens. The mercury is set to hit 42°C in parts of the Rhône valley, a temperature that defies the body’s ability to cool itself. This is not a freak event. It is the systematic rewriting of our climate norms, and we are failing to adapt fast enough.
Meanwhile, across the Channel, Britain is being lauded for its resilience. The UK Met Office has issued amber warnings, but no red alerts. Schools remain open, though headteachers are advised to suspend sports days and keep children in shaded areas. The difference is not luck. It is decades of investment in infrastructure and emergency planning. Britain spent £2.1 billion on flood defences after the 2015 winter storms. It upgraded its heatwave plan in 2021, requiring hospitals to check on vulnerable patients and local authorities to open cooling centres. France has only this year begun to adapt its school buildings, many of which lack air conditioning.
Let us be clear: this is not a competition. The warming planet does not care about national pride. But the contrast highlights an uncomfortable truth. Resilience is a choice, and we are making it too slowly. The European heatwave of 2003 killed 70,000 people. We knew then what was coming. Twenty years later, we still have schools without adequate ventilation and hospitals without backup power supplies. The physics is simple: carbon dioxide traps heat. We have added 50% more of it to the atmosphere since the Industrial Revolution. The result is a planet that is, on average, 1.2°C warmer, with more extreme events baked in.
The good news is that technology exists to mitigate the worst. Passive cooling techniques, reflective roofs, and urban green spaces can reduce temperatures in cities by up to 4°C. The UK’s National Health Service now uses digital risk registers to identify vulnerable patients ahead of heatwaves. France is trialling an app that alerts users to nearby cool spaces. But these are half measures. Full adaptation requires a fundamental rethinking of energy systems, building codes, and agricultural practices. It requires treating climate resilience as a core infrastructure investment, not a discretionary add-on.
Today, as French children sit in stifling homes and British children sweat through their lessons, we must ask: what will it take? We have the data. We have the solutions. What we lack is the collective will to implement them at scale. The planet will continue to warm until we stop burning fossil fuels. That is not a political statement. It is a thermodynamic fact. The only question left is how much suffering we are prepared to accept on the way.
In the next 48 hours, the heat will peak. France will see its highest temperatures on record for June. Emergency rooms will fill with dehydration cases. The elderly will die in their homes. And Britain will watch, relieved but not safe. Because this heatwave will not be the last. The next one, or the one after that, may breach our defences too. The lesson from France is not that Britain is better prepared. It is that no one is prepared enough.