Europe’s May and June heatwave deaths – and how they were counted

Recent weeks have seen a flurry of reports from public health authorities and scientists that estimate the deaths caused by Europe’s record-breaking summer heatwaves. 

In France, the national public health agency reported 2,025 excess deaths over the week where the heatwave peaked in June. 

Authorities in Germany and Netherlands put the excess death toll during the same seven-day period at 5,753 and 533, respectively.

An analysis from climate scientists in Carbon Brief found that France saw more than 2,700 heat-related deaths over 17 days in June.

Separate research estimated there had been 2,700 heat-related deaths in the UK’s May and June heatwaves – 42% of which had been caused by human-caused climate change.

There are a number of methods for how academics and governments tally deaths caused by extreme heat, each with their own advantages and drawbacks.

Here, Carbon Brief looks at the different ways scientists and public health authorities have calculated the death toll of Europe’s record-breaking summer heat. 

• How established is the science of calculating heat deaths?
• What are the different approaches to counting heat deaths?
• What do the latest figures show for Europe’s May and June heatwaves?
• What are the pros and cons of the ‘excess deaths’ method?
• What are the pros and cons of the ‘statistical modelling’ method?