New York Times: "Scientists say climate change is a central factor in creating the atmospheric ingredients that make wildfires like California’s more extreme. Warmer global temperatures, driven by the greenhouse gases emitted from man-made activity like burning coal and driving cars, has led to droughts as well as more intense heat waves that last longer. The result: increasingly intense fire seasons that start earlier and last longer."
“'You combine drought and heat, you get record wildfires. It’s not rocket science,' said Michael Mann, director of the Earth System Science Center at Pennsylvania State University."