Heatwaves and healthcare: Climate pressures on NHS resilience
Summer 2022 saw 2,985 heat-related excess deaths, the highest number in any given year.
Heat episodes can also significantly impact healthcare service delivery. In July 2022, extreme heat triggered a major IT failure at London hospitals, severely disrupting services. Referral rates fell to 64% of the usual volume, outpatient appointments dropped to 84% and elective procedures to 71%. The total cost of restoring operations was £1.4 million.
These events are not an outlier. At the time of writing, the temperature feels like 33°c in London. The frequency, duration and intensity of heatwaves is rapidly increasing due to climate change. The impact is disproportionately felt by older adults, people with chronic conditions, and those in poorly ventilated housing, creating equity concerns.
The NHS 10 Year Health Plan references their Net Zero Plan in passing but is missing any explicit plans to mitigate increased climate change mortality risks. The NHS is insufficiently placed to deal with increasingly frequent extreme weather events; without urgent action to accelerate sustainable healthcare, posing serious financial and health risks.