Been said before, but bears repeating: Tom Swetnam’s Senate testimony Monday:

Global warming is making Western wildfires worse, a top fire expert told members of the U.S. Senate on Monday.
Combined with a century of firefighting that has left some forests choked and overgrown, along with people building more and more communities at the forests’ edge, the problems “are coming together in a perfect firestorm,” said Tom Swetnam, head of the Laboratory of Tree Ring Research at the University of Arizona in Tucson.
Swetnam testified Monday before Sen. Jeff Bingaman, D-N.M., and the other members of the Senate Committee on Energy and Natural Resources.