The epic drought gripping California has killed more than 102 million trees in the Sierra Nevada, in many cases by weakening them so much that they became vulnerable to attack by bark beetles. A huge effort is underway in the Sierra Nevada to cut down dead trees near roads and homes before they fall. There are also fears that the deadwood could fuel catastrophic wildfires. William Libby, a retired professor of forestry and genetics at the University of California, Berkeley, said that after a heavy rain, trees weakened by drought have been known to die suddenly instead of rebounding. He likened it to giving a starving person too much food too fast.
Source: News from The Associated Press
This is another example of the effects of abrupt climate change. It brings extremes and sudden changes that flora can’t tolerate.