As the UK faces record temperatures, climate campaigners are calling for the urgent installation of air conditioning units in schools, care homes, and other facilities for vulnerable individuals. In 2022, extreme heat contributed to around 3,000 deaths, highlighting the pressing need for effective cooling solutions. Studies show that air conditioning can decrease heat-related fatalities by 75%. With the number of air-conditioned homes rising to 4 million, pressure is mounting on the government to act. Experts advocate for integrating air conditioning with solar energy to manage electricity demands and minimize carbon emissions. They also emphasize the importance of improving building insulation and ventilation in care homes and hospitals. The government has begun to address this issue by including air conditioning in its heat pump installation grants, but further action is needed to ensure that energy supply can meet the increased demand. The growing urgency for these adaptations reflects the changing climate and its impact on public health and safety.