Climate change has been identified as a significant contributing factor to the unusually high temperatures experienced in the UK and Ireland this week, according to an analysis conducted by Climate Central, a US-based nonprofit organization that specializes in studying the connection between weather and climate change.
The organization's research suggests that the heatwave forecasted for most parts of Britain, which is expected to last from Wednesday to Friday, was made five times more likely due to global warming caused by human activities. Similarly, the sweltering temperatures experienced in Ireland over the same period were found to be twice as likely as a result of climate change.
Friederike Otto, a senior lecturer in climate science at the Grantham Institute for Climate Change and the Environment, emphasized that this relationship between climate change and extreme heat is not limited to the UK and Ireland. She stated, "This week's heat in the UK has been made hotter by climate change that is the result of human activities like burning coal and other fossil fuels. This is now the case for every heatwave, everywhere in the world."
The UK Met Office has issued warnings that temperatures may soar as high as 33C (91.4F) in certain areas, which is approximately 10C above the average expected for this time of year. Night-time temperatures are also projected to break records. The UK Health Security Agency has issued an Amber Heat Health Alert, highlighting the potential significant impacts on health and social care. Particularly vulnerable are the elderly and individuals with existing health conditions.
Roger Harding, director of the UK-based non-profit organization Round Our Way, emphasized the strain imposed on individuals in poor health or living in smaller, confined spaces when temperatures reach 26C or higher. He stated, "When our homes and hospitals exceed 26C, it significantly increases the strain on those in poor health and particularly affects older people. Those of us stuck in smaller cramped flats or houses are often the most at risk of overheating."
According to Climate Central's analysis, six major cities in the UK, including London, will experience temperatures more than 10C higher than the average recorded between 1991 and 2020. London, in particular, is expected to see temperatures rise by 11C.
Although the UK largely avoided extreme heat earlier this year, following a scorching summer in 2022 that led to a record wildfire season for London, the country experienced above-average temperatures due to a hot June. The Met Office confirmed that July and August temperatures were close to average, resulting in one of the ten warmest summers on record for the UK.
Hannah Cloke, a professor of hydrology at the University of Reading, noted that temperatures in the low 30s are uncommon for the UK in September. However, she expressed hope that conditions would cool down in the following week, providing relief to the most vulnerable groups, such as the elderly, young children, and those working outdoors.