Extreme heat linked to over 40,000 deaths in England since 1988

The escalating climate crisis has been linked to over 40,000 excess deaths in England on the hottest days since 1988, according to alarming data from the Office for National Statistics (ONS).

These figures paint a stark picture of the human toll of rising temperatures, but they do not even account for the current summer. England has endured a relentless series of heatwaves, and experts predict this summer will likely record the highest number of heat-related deaths to date. The UK Health Security Agency reported an estimated 2,877 deaths during the May and June heatwaves alone, a number almost double the entire summer total in 2025.

The ONS data underscores the severe impact of extreme heat events, highlighting the urgent need for climate action. As temperatures continue to climb globally, the findings serve as a critical warning about the health consequences of climate change. The statistics reveal a growing trend of mortality directly associated with periods of intense heat.