An event focused on extreme heat has been cancelled in London due to the current, record-breaking heatwave. The event, part of Climate Action Week and scheduled at the Shaw Library at the London School of Economics, was called off following a red alert issued by the Met Office for Greater London. The red warning, indicating a high risk of adverse weather, extends to areas from London to Swansea and Birmingham, and is in effect from Wednesday morning to Thursday evening. Temperatures are forecast to reach as high as 39 degrees Celsius. The cancellation highlights the immediate impact of climate change as extreme weather disrupts efforts to address it. Authorities are prioritizing public safety amid the unprecedented heat.