-fire suppression impacts
Then they say 'Regional warming and consequent increases in water deficits' are likely contributors. Okay, here's a little bit of insight. What causes regional warming? Here's a clue. 300 million cars driving every day in the USA, pumping massive amounts of CO2 into the atmosphere (forgetting the impacts of coal-power stations). So pollution by humans is a factor, in that the pollutants induce warming, and warming induces dessication.
It's really dumb to say the forest die off is caused by warming and stop there. What is causing the warming? And we want to bailout the automakers? Might want to think about why we would want to do that.
Tree mortality doubled in just 17 years in the Pacific Northwest and 25 years in California.