The never-ending fire season stems largely from a years-long drought that gripped much of California before easing in 2017. An estimated 129 million trees died from a lack of nutrients and infestations from bark beetles, leaving hillsides and forests dappled with kindling. The results have been grim. Record-setting fires have swept across the state, killing more than 100 people in two years. All told, nearly 900,000 acres burned in 2018 on land Cal Fire patrols. That’s more than triple the five-year average.