'Climate change' is not the issue, unrealistic population infrastructure capacity is. In California the ecology is that we have regular cycles of heavy rain every 5-7 years. The reservoir systems were originally built to store water for the dry years.
Forestry management took into account tree disease and the fact forest floors have self cleansed with fire for millennia.
Today we appear to have forgotten all this and are instead astonished and horrified if it rains/ doesn't rain and when there are fires during fire season.
Arizona is in a far more serious situation with inadequate infrastructure capacity to sustain massive population increases, but currently the mania for housing anyone who wants to live in the west outstrips common sense.
Obviously good ecological stewardship of our planet is a no brainer but it seems as though a lot of people just can't join up the historical dots on this and feel human migration to the more pleasant geographical and climate areas are a human right independent of 'tragedy of the commons' logic.