Wildfires may start with a single spark, but experts say climate change, drought and decades of forest management decisions have created the conditions for Europe's biggest blazes.

The wildfires sweeping France and Spain this week are the largest blazes either country has faced in modern history.

Experts say the world is experiencing two opposing fire trends because of human impact. Wildfires in Europe, Canada and the U.S. are high, and flirting with record levels in…

Heavy rainfall followed by extreme heat created the perfect tinder, as flames spread through regions of France and Spain.