So, as you may have heard, Atlanta is running out of water, and nobody really seems to know what will happen if the unthinkable occurs and drought persists for another two months. But it's not as if this is really a new thing.
It seems like somehow in the latter part of the 20th Century, we in the US lost track of the fact that we're actually quite small and powerless in the face of macro-scale events. Droughts and other disasters (some of them manmade) have always happened, and will happen again, but we've forgotten this. We seem to believe too deeply in our exceptionalism, that we're somehow exempt from history and the cruel twitches of fortune.
As Bukowski said, "The trouble with these people is that their cities have never been bombed.". We have no feel for loss. We've constructed massive metropolises -- the fastest growing in the nation -- in the middle of deserts. There were dead cities in the same places when white people first got here. It's a failure of history and memory; hubris.
As Dick Cheney said, "The American way of life is not negotiable," and indeed it seems literally inconceivable to our leadership class that shit might not work out. I find this baffling and sad.
Politically I think this is part and parcel with the rise of post-modern conservatism. It's a particular blend of resource-intensive, non-scalable, non-sustainable infrastructure -- think exurbs, big lawns, etc -- coupled with a paradoxically anti-government philosophy (juiced with reactionary cultural backlash, of course).