Heatwave threatens to intensify France’s mega-fire near Bordeaux

Firefighters are battling a wildfire in south-west France which covers an area four times the size of Paris as temperatures were forecast to reach 40C.Authorities in the Gironde region said the blaze had not spread further during a calm night but warned that forecast heat and winds could cause the flames to surge again.The landscape was so combustible that investigators believe routine brush-clearing work near a high-voltage line may have sparked the inferno, even though the work appeared to comply with regulations.At the command centre in Lege, firefighters bent over maps spread across a car as commanders tracked three danger zones: northern Cap-Ferret, the wooded corridor around Marcheprime, Cestas and Saint-Jean-d’Illac, and a military site near Martignas, where a significant new outbre