A historic heatwave is sweeping across central Europe, with Germany, Denmark, and the Czech Republic recording all-time temperature highs. In Germany, the mercury hit 42.6°C in the city of Cottbus, surpassing the previous national record set in 2015. Denmark saw 41.1°C in Copenhagen, while the Czech Republic recorded 40.8°C in Prague. The event is part of a broader pattern of intensifying heat extremes linked to climate change. According to the World Weather Attribution network, human-induced warming made this heatwave at least five times more likely and 2°C hotter than it would have been in a pre-industrial climate.
The immediate cause is a persistent high-pressure system over Scandinavia, pulling hot air from North Africa and the Mediterranean. This 'heat dome' is expected to linger for several more days, with temperatures remaining well above seasonal norms. The health impacts are severe: hospitals across the region report a surge in heat-related admissions, and authorities have issued red alerts, urging people to stay indoors and hydrate. In the Czech Republic, a wildfire has broken out in the Bohemian Switzerland National Park, threatening rare ecosystems.
Meanwhile, the United Kingdom, which experienced its own record heatwave in July 2022, has been praised for its enhanced climate resilience. The UK's heatwave plan, updated in 2023, includes improved public health messaging, mandatory cooling in care homes, and investment in green infrastructure. Though the UK is not currently in the grip of extreme heat, officials are watching the continental weather pattern closely. The Met Office has issued a yellow warning for parts of southern England, where temperatures could reach 30°C this weekend. However, the nation's infrastructure, from railways to hospitals, is better prepared than in 2022, when wildfires and rail buckles caused widespread disruption.
This juxtaposition of records and resilience is a stark reminder of the new normal. The European heatwave is a physical manifestation of the 1.2°C of global warming we have already locked in. The energy imbalance driving these extremes is unequivocal: the oceans are absorbing 90% of the excess heat, and atmospheric moisture has increased by 7% per degree Celsius, fueling more intense storms and heat events. The solution remains the same: rapid decarbonisation and adaptation. The UK's progress is commendable but insufficient. As I have stated before, we are in a state of calm urgency. The physics does not negotiate.
