Cities around the world are facing more frequent and intense bouts of extreme heat, leading to an increasing focus on the use of air conditioning to keep urban areas cool. With the UK having experienced its hottest summer on record in 2025, for example, there was a wave of media attention on air conditioning use. Yet less than 5% of UK homes have air conditioning and those most vulnerable – older adults, low-income households or people with pre-existing health conditions – often cannot afford to install or operate it. While air conditioning may be appropriate in certain contexts, such as hospitals, community spaces or care homes, it is not the only solution. Our research as part of the IMAGINE Adaptation project shows that a universal focus on technical solutions risks deepening inequality and has the potential to overlook social, economic and environmental realities. Instead, to adapt to record temperatures, our research suggests a keener focus on community and equity is needed. Contextualising urban heat vulnerability In the UK, heatwaves are becoming more frequent and severe. Moreover, the evidence points to significant disparities in exposure and vulnerability. By 2080, average summer temperatures could rise by up to 6.7C, according to the Met Office. During the summer of 2023, around 2,295 heat-related deaths occurred across the UK, with 240 in the South West region. Older adults, particularly those over 65, were the most affected, government figures show. A recent UN Environment Programme report highlights that there is an “urgent” need for adaptation…
