‘It’s full of green areas’: mystery of Europe’s heat death hotspot

Hot weather has proved deadlier in the Croatian city of Osijek than in any other European city but little is being done to work out why

The green LEDs on the cross outside the pharmacy read 38C for the second day running, but the noontime crowds in the centre of Osijek seemed untroubled by the danger that signalled. “We work in the sun but for us it’s no problem,” said Davor, 47, a bike courier with the food delivery service Wolt.

Though many living there may be unaware, this small Croatian city is Europe’s heat death hotspot. In the past two decades, hot weather has proved deadlier in Osijek than in any other city in Europe, a study in the Lancet medical journal found. The researchers modelled temperature and mortality data from the 854 biggest cities in Europe and found Croatians were most likely to died from the heat.