Climate change turns warm summer days in England into health threat

World Weather Attribution uses weather observations and climate models to understand how climate change influences the intensity and likelihood of extreme weather events. The studies also assess the role of human vulnerability and exposure in the impacts to highlight the actions needed to prepare for changing weather extremes. WWA performed a super rapid analysis, analysing observations only on this early summer heat in the Southeast of the UK, defined (1) by the official heatwave definition of reaching 28°C in many of the so-called home counties and greater London (dark red region in figure 1, Met Office) and (2) the hottest predicted day in the same area. While this is not a full attribution study, the results are in agreement with the study undertaken in July 2022 over a similar region (Zachariah et al., 2022), thus we have high confidence in the results. calm, sunny days and gradually rising temperatures.