Scientists warn heat killed about 50,000 people in European cities this summer

1. What happened

   According to a Guardian report, scientists say heat killed an estimated 50,000 people in Europe's cities this summer. The headline describes the toll as 'staggering'.

2. When it started

   The Guardian article is dated 23 October 2026, based on its web address. It refers to deaths during this past summer.

3. How it spread

   The article's headline attributes the estimate to scientists. The methods, time period and countries covered are not stated in the information provided.

4. Why it matters

   Heat-related deaths are a growing public health concern, and estimates like this inform discussion of urban heat planning. Specific figures should be checked against the full study or the Guardian's original report.