[Editorial] Health professionals: be prepared for heatwaves (Lancet)

Heatwaves, periods of abnormally and uncomfortably hot and usually humid weather, are among the most dangerous natural hazards. Because of climate change, heatwaves are becoming increasingly frequent and intense, with 14 of the 15 warmest years on record all occurring in the 21st century. In 2003, the European heatwave resulted in deaths of more than 70 000 people.