More than 250,000 evacuate as wildfires ravage France and Spain

Wildfires sweeping across France and Spain have forced more than 250,000 people to evacuate as authorities struggle to contain the blazes. Spain's prime minister has warned of "complex hours" ahead, while French officials say they remain far from bringing the fires near Bordeaux under control.

A single blaze near Bordeaux has consumed more than 162 square miles in less than four days. The Madrid region is experiencing its worst fires on record, and the wildfire threatening Bordeaux has advanced to within nine miles of the city, prompting officials to prepare for additional evacuations.

Firefighters are battling against a sharp rise in temperatures as a new heatwave brings conditions of 40 degrees Celsius—circumstances that could complicate containment efforts. Witnesses describe scenes of disbelief and anxiety as more than 300,000 people flee what some describe as a "wall of flames."

Scientists say that countries such as Spain and France can expect fire regimes increasingly resembling those of California as climate change favors hot, dry conditions. The crisis has also revealed unexpected hazards: explosions heard in the French village of Le Porge are believed to have been caused by hundreds of World War II shells uncovered by the flames.

The disaster has sparked political debate in Spain over climate change's role, even as crews continue battling fires that have burned nearly 200,000 acres. In France, the government is attempting to determine responsibility for the unprecedented fires, with hundreds arrested in connection with the blazes.