[The_Media_never_lie]

And the cause of the drought is..........?

[NorthMountain]

It’s a damn DESERT!

[b4its2late]

Global Warming no doubt. Along with Bush’s Fault!

[laplata]

And the cause of the drought is..........?

---

Those damned coal miners driving their SUV’s to work.

[oh8eleven]

And the cause of the drought is..........?
George Bush (c'mon, get with the program) !!!

[blueplum]

In California’s case: the feds

In general, El Nino or La Nina:

Historical Droughts in Central Mexico and Their Relation with El Niño
http://www.researchgate.net/publication/237966745_Historical_Droughts_in_Central_Mexico_and_Their_Relation_with_El_Nio

A Study of Historical Droughts in Southeastern Mexico
http://journals.ametsoc.org/doi/abs/10.1175/JCLI3726.1

Causes and consequences of nineteenth century droughts in North America (La Nina)
http://www.ldeo.columbia.edu/res/div/ocp/drought/nineteenth.shtml

and, just for an aside, lice-born typhus coincides with drought:

http://wwwnc.cdc.gov/eid/article/20/3/13-1366_article

[goodnesswins]

"the cause of the drought is....?"..... GOVERNMENT!!!