UK records hottest June day as climate models miss abrupt warming impacts

Climate scientist Philippe Ciais warned that abrupt changes such as the 2023 Canadian boreal forest burn, Amazon drought‑driven tree loss and Siberian permafrost collapse are not captured by current IPCC earth‑system models, which underestimate carbon‑loss processes.

The United Kingdom experienced its highest June temperature on record, 36.1 °C in Gosport, Hampshire, prompting a red extreme‑heat warning, the closure of hundreds of schools in England and Wales, and transport disruptions. Forecasts suggest temperatures could reach 38 °C. A separate analysis found that one in six babies in England are living in overheated homes, with over 70 000 infants affected, and a WWF‑CDP report revealed that listed companies’ climate targets align with a 3.2 °C warming trajectory, far above the 1.5 °C limit of the Paris Agreement.