Biggest drought in US history

http://www.theatlanticwire.com/national/2012/07/us-declares-largest-natural-disaster-area-ever-due-drought/54479/

"The blistering summer and ongoing drought conditions have the prompted the U.S. Agriculture Department to declare a federal disaster area in more than 1,000 counties covering 26 states. That's almost one-third of all the counties in the United States, making it the largest distaster declaration ever made by the USDA. "

Global warming, which I assume you agree is happening now, is going to drastically change the weather almost everywhere. And strange consequences will arise. Here in the Black Hills, for example, the heat stress on the pine trees gives rise to the pine beetle.  The pine beetle lives under the bark, so it's difficult to eradicate.  It kills the host tree before moving on with its new horde of children.

There's no way to turn back the clock, so the new order of the day is adjustment.