9/6: Dead trees are fueling California wildfires, but what's killing the trees? Published September 6, 2016 at 2:47 PM PDT Listen • 23:44 Ways To Subscribe Apple Google The tiny culprit behind the pine tree fatalities fueling California's rash of wildfires.For wildlife, the traffic problem at Muir Woods is life or death.The bookmobile brings public libraries to neighborhoods and schools.