A June heatwave may have caused the deaths of 263 people in London, according to a new study by scientists from Imperial College London and the London School of Hygiene & Tropical Medicine. The researchers analysed excess deaths between 23 June and 2 July, concluding that climate change made the capital nearly 4°C hotter than it would have been. Around two-thirds of the deaths were directly linked to this rise, effectively tripling the toll. With a third heatwave now on the way, experts are