The western United States has been in a drought for 15 years, but it wasn't until California's extreme drought and the water conversation measures mandated by Gov. Jerry Brown many began to take notice.

But beyond Mother Nature, who is to blame: Big Ag? Urban Development? 

The debate also rages about solutions. Should we be building more desalination plants on California's coastline? What about extreme conservation such as water rationing? Should we build more dams? Or take down a few already built on the Colorado River?

Perhaps the biggest question facing all of the desert Southwest: what will we do if the drought doesn't end?