Europe has been warming twice as fast as the global average since the 1980s, making the region more vulnerable to wildfires.

Spain has sent 500 more troops to fight raging wildfires, bringing the total deployed to 1,900, as the death toll from the blazes has risen to four. On Sunday, a firefighter died after an accident during firefighting efforts when his truck fell down a steep hill,

Thousands of firefighters backed by the military and water-bombing aircraft on Monday battled dozens of wildfires across Spain and Portugal, as the death toll increased to six since the outbreaks began.