
Heatwaves in numerous countries during 2022 sent all-time temperature records tumbling. On the day before the UK endured a shaded air temperature of 40°C for the first time ever, the Met Office issued its first ever red alert for extreme heat, which meant that people needed to take extra care to keep cool and avoid heat stroke.
In countries like the US and Japan, that might mean staying indoors and cranking up the air conditioning. But air conditioners are still relatively rare in many European countries, including the UK. Should increasingly brutal summer heat – and uncomfortably warm autumns – compel people to install them?