UK heatwave has ‘fingerprints of climate change all over it’

The UK is enduring its fifth consecutive day of extreme heat, with temperatures soaring to 35C at Heathrow Airport on Tuesday, shattering the May record for the second time in two days. Multiple regions, including Suffolk, Berkshire, and Warwickshire, have also broken temperature records, with Kew Gardens in London hitting 34.8C on Monday—2 degrees higher than the previous May record set in 1922. Forecasts suggest London’s temperatures will soon rival those of cities like Lagos, Cairo, or Ho Chi Minh City. Climate scientist Friederike Otto of Imperial College London described the heatwave as ‘astonishing,’ emphasizing that climate change is making such extreme events hotter, longer, and more frequent. She warned that current infrastructure is unprepared for the new climate reality, with buildings and systems failing to cope with rising temperatures. Otto stressed that temperature records will continue to fall unless global emissions are drastically reduced to reach net zero. The UK government’s Climate Change Committee (CCC) issued a report last week highlighting severe gaps in adaptation efforts. Over 90% of homes lack proper insulation, and by 2050, daily water shortages of five billion liters are projected. While international climate action since the 2015 Paris Agreement has slowed projected warming, the world remains off track to limit global temperature rise to below 2C, with a potential 4C increase still possible. The CCC estimates £11 billion in annual investment is needed to adapt critical systems, including cooling hospitals and care homes, securing supply chains, and bolstering food systems. During the UK’s first 40C heatwave in July 2022, over 3,000 deaths were recorded, and transport networks collapsed under the strain. Gareth Redmond-King of the Energy and Climate Intelligence Unit warned that current extreme weather is dangerous, despite its appeal to some. Experts agree that without urgent action, the UK’s vulnerability to heatwaves will worsen, with regular temperatures exceeding 40C in parts of the country by mid-century. The global average temperature has already risen by 1.3C since pre-industrial times, underscoring the urgency of adaptation measures.