Copernicus Climate Change Service tops news as global temps spike; EU’s climate data backbone. C3S — EU service tracking warming.
A persistent heat dome has produced record early-summer temperatures across western Europe, with France under extensive red alerts, nighttime temperatures at record highs and multiple drownings linked to people cooling off in unsupervised waters. Authorities have closed schools, limited public drinking at events and altered transport and public gatherings as the heatwave continues through the week.
France endures its hottest day on record as a Europe-wide heat wave triggers power outages in Brittany, with 100k+ customers affected. Crews are restoring supply and warnings persist about continued extreme temperatures.
A new study in Nature Climate Change finds heat stress is spreading beyond traditional hot regions, with nights warming faster than days. The world’s population exposed to at least one day of extreme heat stress has risen to about 1 billion more people since the 1970s, and nights that stay warm hinder recovery after daytime heat.
A persistent heat dome has driven unprecedented May temperatures across western Europe this week, with the UK and France having broken May records (Kew Gardens provisionally 35.1°C). Ambulance services have reported record call volumes, amber heat-health alerts have been issued, thunderstorms and fires have followed the heat, and officials are urging caution around open water.
The National Science Foundation has halted plans to remove or descale the Ocean Observatories Initiative, after lawmakers and scientists warned of risks to climate data, weather forecasts and coastal safety. An expert panel will assess future needs while equipment already removed will be redeployed. The move follows bipartisan pressure and a Senate bill to block decommissioning.
El Niño has formed in the Pacific and is expected to strengthen through late 2026, with a 63% chance of reaching a very strong level. Forecasts warn of hotter global temperatures and extreme weather, while impacts will vary by region. Scientists urge preparation and climate action as nations monitor evolving conditions.