Here's a great talk from a Forest Service expert on why wildfires have become worse. The TLDR is that forests have become much denser, particularly after old trees were logged, and this creates large areas of fuel. Additionally, forests need active management - prescribed burns, dry fuel cleanup, pest management, etc. Climate change may be aggravating or amplifying the intensity of wildfires but there are other causes that are potentially more important, and they present opportunities for wildfire prevention that are currently ignored by governments/news media/social media.

https://www.ted.com/talks/paul_hessburg_why_wildfires_have_g...