What is your estimate of the number of deaths caused by heatwaves in London this year and what is the source of this data?

Since 2016, UKHSA has produced a report with estimates of heat-related deaths including an assessment for London. I understand that the COVID-19 pandemic made it difficult to measure heat-related impacts in the same way, which is why UKHSA is currently working with the Office for National Statistics (ONS) to improve reporting on this. Together, they have published estimates of the impacts of heat in summer 2022. However, these do not include regional estimates that allow us to compare impacts to previous years.

UKHSA will publish a report in early 2023 which will include regional estimates along with information about the relationship between COVID-19 and heat.

Nationally, UKHSA estimates that there were 2,803 excess deaths during periods of heat in summer 2022 – the highest number since 2016. These increasing impacts are why I have established a Cool Spaces map, guidance for Schools and Early Years' Settings, and care home audits to support those most at risk from heat.